DHA Exam Questions Important Notices
This Paper contains all the possible questions that will or most like come on the Dubai Health Authority exam for Dentists. It’s important to understand that this is a reference source and it’s based on peoples experience and referred to some sources for verification none the less … we are human and we can do mistakes… but this is the best we can do – OziDent Team. The correct answers contain the plus sign right to it +++
Authors
Edited by Dr. Mohsen S. Ozaibi (OziDent.com)
Contact Please contact me at
[email protected] for further information or correction Aslo visit our website
http://www.ozident.com Good luck
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1) The body secretes antibody against antigen using which cells - T lymphocyte - B lymphocyte++++ 2) In diabetic patient , periodontium affected by which cells - Neutrophils - Macrophages++++ 3) When taking an x-ray to pregnant lady we use all of this method except: - digital x-ray - high sensitive film - 16 inch / long cone / paralleling tech - 8 inch / short cone / bisecting angle tech++++ - lead apron with thyroid collar 4) Best measurement of periodontitis by: - pocket depth - bleeding - attachment level++++ 5) Proximal caries should be opened when - confined within enamel - pass DE junction - dentine lateraly - all of the above++++ 6) In a study, it should - Protect you against role of the statistician - Protect you against legal risks++++ - Protect you against physical risks 7) Ethics of the study include all of the following except: - privacy of all subjects - informed consent may be required or not - object if the subject refuse to take part of the study++++ 8) In clinical research - no difference between blind & double blind. - if there's need of intervention.++++ 9) Pit and fissure sealant: - -new erupted teeth - -deep fissure and pits in molars - -proximal caries - -a & b++++
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10) Ugly duckling stage: - -9 to 11 years old++++ - -13 to 15 years old - -7 to 9 years old 11) Component of Gutta percha: - -50% Gp & 50% ZOE - -20% Gp & 70% ZOE++++ (Exact is 73%ZOE, 23% Gp, 4-6% others.) 12) All are irrigation for canals except: - -NaOCl - -RC prep++++ (RC Prep = EDTA) 13) For post preparation we should leave ……mm of GP: - -10mm - -5mm++++ (apical 1/3 of the obturated canal) 14) Enamel caries : - outer zone free of…. - outer zone contain high pores 15) Proximal caries confined to enamel: - prevention++++ - observation - restore with G I++++ 16) In community diagnosis and treatment program: - water fluoridation - diagnose, prevent, treat++++ 17) Pass through parotid gland: - facial nerve++++ - facial arteries - external carotid veins 18) Porcelain shrinkage after firing: - 1-5% - 5-10% - 10-20%++++ (exactly 13.3%) 19) the cement under MOD amalgam have this character: - high modulus of elasticity++++ - low modulus of elasticity - the high modulus of elasticity prevent of bonding and decrease tensile strength. - both a &c
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20) Radiographic radioulucency in the interradicular area: - invasion of furcation. (will be present with other clinical manifestations) - periodontal abcess (not enough radiolucent) - periodontal cyst++++ 21) Examination of pt health by the dentist: - to know the patients health - to know what medications to give - to know general health data - all of the above++++ 22) Statements true or false: - RCT abutment of FPD have higher risk for fracture. - abutment which have RCT in cantilever FPD have higher susceptibility to fracture o 1st is true,2nd is false o 1st is false,2nd is true o both are false o both are true++++ 23) Both glass ionomer & polycarpoxylate cement contain: - polyacrylic acid++++ - ZO powder 24) Most frequent cause of fainting in dental office: - vaso-vagal shock++++ - diabetes - fear++++ 25) Loss of consciousness most frequent cause: - syncope++++ CO2 26) Most common cyst in the oral cavity: - radicular cyst++++ - peridontal cyst 27) Ostomylitis most in: - maxilla - mandible++++
28) Factors delay healing of wound: - infection - torn wound edges - strain - poor suturing - all of the above++++ 4|Page
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29) Dry socket happens after: - 24 hours - 3 to 5 days++++ - 1 week - 2 weeks 30) Compared to herpetic ulcers... aphthous ulcers are: - smaller in size - in mucosal lining++++ - leave scars 31) In avulsion, most important factor that affect reimplantation : - contaminated roots - time since the avulsion++++ 32) nicotine stomatitis: an oral pathological condition that appears in the hard palate of the mouth as a white lesion. It is not considered to be premalignant and results from tobacco smoking (especially pipes or cigars. found in men over 45 years of age, it is characterized as a "fissured" or "dried mud" appearance from excess keratin production by cells. The palate may appear gray or white and contain many papules that are slightly elevated with red in their center. Furthermore, the teeth may be stained brown or black.
33) Dentinogenisis imperfecta have all signs except: - broken enamel - blue sclera - broken bone - supernumerary teeth++++ 34) Most sign of fracture of mandible: - nose bleeding - malocclusion++++ - parasthesia 35) Hairy tongue is elongation of: - fungiform papilla - filiform papilla++++
36) What supply the gingival buccal tissue of premolars,canines and incisors: - long buccal - inferior alveolar nerve - superior alveolar nerve - mental nerve ++++ 37) Drainage of tip of the tongue: - submandibular lymph nodes - submental++++ 5|Page
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38) Cementum in cervical 2/3 have: - acellular intrinsic fiber - acellular extrinsic fiber++++ - cellular mixed fibers - intermediate cementum 39) Periodontal attachment contains: - epithilum, sulcus, connective tissue++++ 40) Pins are inserted into: - Enamel - Dentin++++ - DEJ - all 41) After etch enamel and bond it with 5th generation the strength of…… : - 5-10Mp - 25Mp++++ - 30Mp - 100Mp 42) LA in mg if epinephrine 1:100 000 in 2% xylocaine: - 0.01 mg - 1.8 mg - 3.6mg++++ (Dental decks p.1870) 43) Composite restoration that was matching in shade ,after one week it became much lighter, The Reason could be: - light started photoinitation - absorption water - shade selected after rubber dam++++ 44) Disadvantage of digital x-ray are all, except: - large disk space Storage - clarity and resolution++++ (ONE OF THE MAIN ADV’s of digital x-ray) - expensive 45) Treatment of fungal infections: - Amphotrecine B (topical treatment) - tetracycline - Flucnazole (Systemic treatment) - nystatin (topical treatment) 46) Properties of ideal endo obturation material are all except: -radiolucent++++
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47) Vibrating line : - between hard & soft palate - between mobile and non mobile soft tissue of palate++++ 48) pt has hyperventilation in clinic most cause: - reduced amt of CO2 - increase amt CO2 - anxiety++++ 49) All relate to retention of maxillary complete denture except: - tongue movement++++ - type of saliva 50) Most difficult of extract: - mand. 3rd molar with mesioangular fused roots - mand 3rd molar with distoangular angulation with divergent curve roots++++ 51) Very important part in endo treatment: - complete debridement of the canal++++ 52) Perio endo lesion the primary treatment: - endo treatment++++ (desck page 216) - deep scaling and root planning 53) Provisional luting cement: - prevent restoration from dislodgement++ - -sealing++++ 54) contra indication to extraction: - cardiac pt - previous recent radio therapy++++ 55) base of the flap should be wide for: - healing - better blood supply to the wound++++ 56) Supra calculus all true except: - easy to detach - has component of saliva++++ 57) To prevent perio problem MOST effective method is: - community program - Frequent removal of plaque++++ - patient education
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58) thickness of luting cement - 100 micrometer - 40 micrometer++++ - 1mm
59) formacresol used in: - full concentration - 5th concentration - 1/5 concentration++++ 60) zinc phosphate cement: - mechanical attachment++++ - Chemical 61) Traditional Glass ionomer: - mechanical bonding - Mechanical chemical bonding ++++ - acid/base reaction 62) pontic design of an FPD: - Same size buccolingually of the missing tooth - smaller than missing buccolingually++++ - wider buccolingually - none of the above 63) Maryland bridge: - use with young ++++ - to replace single missing tooth 64) false negative response of an electric pulp test given: - after trauma ++++ - periodontal disease - in teenager 65) young with open apex examination test: - reliable - non reliable++++ - none of the above 66) primary teeth had trauma, tooth change in color become white yellowish ,what should u tell the parents: Hemmoragic pulp : Reddish in color - pulp is dead Calcification / partial or complete obstructed - inflammation of pulp canal : Yellowish - calcification of dentin++++ Necrosis : dark gray color
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67) best media for the avulsed tooth: - milk++++ (the best media is the buccal sulcus of the same patient) - water 68) if enamel caries passing half of enamel: - leave it - restoration ++++ 69) Biological depth: - Crestal bone to gingival sulcus++++ 70) Pt wearing denture 5 year ago came with white patches on lower ridge what is the best to be done: - surgical removal of patches. - tell pt stop wearing lower denture & recheck after2 weeks++++. - no treatment. 71) Glenoid fossa is found in: - orbital cavity - nasal cavity - middle cranial fossa - temporal bone++++
The glenoid fossa = the mandibular fossa. The mandibular fossa: a depression in the temporal bone that articulates with the condyle of the mandible and is divided into two parts by a slit.
72) The spread of odontogenic infection is based on: - host defense - virulent of microorganism - No. of bacteria - all++++ 73) Knife ridge should be treated with : - relining soft matiral++++ - maximum coverage of flange - wide occ. table - all 74) AH26 composed of: - ZOE - CaOH - epoxy resin++++ - hydrogen peroxide 75) The splint period require for avulsed teeth: - 6w - 8w - 1-2 month - None of the above (the maximum time to splint is 2 weeks) ++++
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76) child 3 years old came to clinic after falling on his chin, you found that the primary incisor entered the follicle for the permanant inicir what you will do - surgical removal of the follicle - leave it - surgicall removal of the primary incisor++++ 77) tongue develope from: - mandibular arch &toburclum impar++++ - 1st bronchial arch 78) isolated pocket in : - vertical root fracture++++ - palato gingival groove - endo origin lesion - all 79) perforation during endo space preparation wht is the most surface of distal root of lower molar will have tendency of perforation: - M SURFACE++++ - D - B 80) crown and root perforation: - respond to MTA - use matrix with hydroxiapatite and seal with G I - 1&2++++ - root canal filling 81) 3rd generation of apex-locator: - use with all pt - need more research - increase chair time - decrease radiographic film need++++ 82) Acceptable theory for dental pain: - hydrodynamic++++ - fluid movement - direct transduction 83) Removing of dentine in dangerous zone to cementum is : - perforation - ledge - stripping++++ - zipping
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84) tracing of GP used for: 1/to detect source of oeriapical pathosis++++ (to follow the GP through the sinus tract in the x-ray) 2/acute periapical periodontitis 3/ periodental abscess 4/ non 85) occlusal splint device: 1/ used during increasing vertical dimension++++ 2/allative muscle of mastication 3/ occlusal plane CR/CO 4/ALL 86) silane coupling agent: 1/ used with porcelain to enhance wetability of bonding++++ 2/ used with tooth and porcaline 87) when increase vertical dimension you have to: 1/ increase minimal need 2/construct anterior teeth first thenposterior teeth 3/ use provisional crown for 2 months++++ 4/all 88) amalgam keep under: a fixer++++ b-developer c- water 89) the irrigation material used to kill the E.Faecalis bacteria: a-Na oH b-MTA++++ c-saline 90) hand instrument which we used to make internal angle retentive groove and preparation of cavity wall in the cavity is: a-angle former++++ (source : Art & Science) b-chisel c-file d-enamal hatched 91) What is the no of the pharyngeal arches? 1/ 6++++ 92) To detect the occlusal plan which of the following used? 1/ Frankfort plan 2/ ala-tragus line++++
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93) Streptococcus mutans cause caries & this disease is? 1/ eipdemic 2/endemic++++ 3/isolated 94) pt came to the clinic complaining from pain related to swelling on maxillary central incisor area with vital to under percussion? 1/ periapical cyst 2/incisive cyst( nasopalatin cyst)++++ 3/ globulomaxillary cyst 4/ anuyrsmal bone cyst 95) pt came to the clinic & u revealed under medical history he had chronic renal failure; he used to do hemodialysis the treatment should be: 1/ before one day of dialysis 2/ on the day of dialysis 3/ after one day of dialysis ++++ 4/ after one week of dialysis 96) pt taken heparins he should do surgery after : 1/ 1 Hr 2/ 2 Hr 3/ 4 Hr 4/ 6 Hr++++ 97) Treacher – Collins syndrome is mainly: 1/ mandibular retrognathia ++++ 2/ loss of hearing 98) the most common injures in child is: 1/ tooth ++++ 2/ root 3/ intrusion of the tooth inside the socket well
Treacher Collins Syndrome is characterized by : 1. incomplete growth of mandible (retrognathic). 2. slinting of eyes corner. 3. Absent zygomatic arch / malar bone 4. malformed or absent ear auricles with weakened or (in 50%) loss of hearing.
99) The power tooth brush invented in: 1/ 1939 ++++ 2/ 1949 3/ 1929 4/ 1959 100) location to give inferior alveolar nerve block the landmarks are: 1/ ptergomandibular raphy 2/ cronoid notch 3/ all of the above ++++
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101) what kind of periodontal probe is used in the furcation area: 1/ WHO 2/ Nabers probe ++++ 3/ UNC 15 4/ Michigan 102) what kind of suture used under the immediate denture: 1/ horizontal matter suture 2/ vertical matter suture 3/ interrupted suture 4/ continous locked suture ++++ 103) Ideal properties of RC filling material is the following except: a) Radiolucent in radiograph++++ b)Not irritate the surrounding tissue c) Easily removable when retreatment is necessary d)Stable and less dimensional change after insertion 104) During instrumentation sudden disappear of root canal due to : a) Bifurcation of main canal ++++ b) Apical perforation c) Calcification 105) After examination of the tooth a)start local anesthesia b)excavate the dentin c)testing the tooth with the pulp tester++++ 106) Incipient caries in the old patients is MOSTLY due to: a)smoking b)saliva c)xerostomia++++ 107) The best restoration for the maxillary central incisor that has received root canal treatment through a conservative accsess opening would be: a) post retained metal crow b) post retained porcelain jacket crown c) composite resin++++ 108) In post and core , it is important to: a)end the core at contra bevel to produce ferrule effect b)end the core at the cervical finish line c)the core take the same shape of a natural toorh d)the core take the same shape of prepared tooth - a only - b&d - a&c -a&d++++ 13 | P a g e
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109) Thickness of the porcelain in metal-ceramic restoration a) 1.7 – 2.3mm b) 0.5 – 1.5 cm c) 0.2 mm d) 0.05 – 0.15 cm (0.5 mm- 1.5mm)++++ 110) Patient came to your clinic with dull pain in the #6 ,no response to the pulp tester, in radiographs it shows 3mm of radiolucency at the apex of the root Diagnosis is a)chronic apical periodontitis++++ b) acute apical periodontitis c)acute periodontitis with abscess 111) Composite for posterior teeth a) Macrofilled + fine filler b) Hybrid + rough filler ++++ 112) Pulp stone can be the following except: a) present freely in the pulp b)cause discomfort & pain to the patient c)In radiographs,Small spheroidal radioopaque d)False stone occurs due to destrohpic dentin ++++ 113) The optic foramen canal is a part of: a)Frontal bone b)Sphenoid bone++++ c)Esthmoid bone 114) In growth, cartilages may give rise to bones: a)true++++ b)false 115) Adjustment of proximal contact with: a) Shim stock b) Pencil c) Dental floss++++ d) c &d
Note: Shim Stock : Wedge / Spacer.
116) Best core material receiving a crown on molar a)amalgam++++ b)reinforced glass ionomer d)composite 117) Oral lesion of lichen planus usually appears as: a)white streaks++++ b)Red plaques c)small shallow ulcers d)papillary projections e)bullae 14 | P a g e
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118) Radiographic diagnosis of bone destructive lesion in the mandible without evidence of bone formation is: a)Osteomyelitis b)Malignancy++++ c)Fibro-osseous lesion d)Fracture e)Osteoradionecrosis 119) Calculus induce further periodontal lesion due to: a) Directly stimulates inflammation b)more plaque adhere to it++++ 120) Most coomon site to drain pus is: a) mandibular central incisors b)mandibular canines c) mandibular first molar ++++ 121) First of pharyngeal arch is: a)Maxilla b)Mandible++++ c)hyoid 122) The nmber of pharyngeal arches is: a)One b)Two c)three d)Six++++ e)Seven 123) The naso palatine bone forms a triangle will be parallel to an imaginary lines extended between cemento-enamel junctions of adjacent teeth a)true++++ b)false 124) *Bross brushing has the advantage of the bristles enters in the cervical area . *It is recommended for all patients. a)both statements are true b)both statements are false c)first is true ,second is wrong++++ d)first is wrong , second is true 125) Chronic suppurative periodontitis a) Patient complains of moderate pain b) Fistula with pus discharge++++ c) Pulp polyp in open caries
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126) Complete denture poorly fit and inadequate interocclusal relation a) relining b) rebasing c) new denture ++++ 127) The incisal guidance on the articulator a) same as condyler guidance b) compensating for the overbite and overjet++++ c) compensating for curve of spee 128) The primary drainage(or spread of infection) of the mandible is the submental lymph node: a)true b)false++++ 129) Most common tooth which needs surgical extraction a)mandibualr third molar++++ 130) The nerve which supply the tongue and which may be anesthetized during nerve block injection a) V ++++ Lingual Nerve branch of the Inferior Alveolar Nerve of b) VII the Trigeminal Nerve (Cranial V) c) IX d) XII 131) when removing moist carious dentin which exposes the pulp , dentist should 1- do direct pulp cap (is done upon accidental exposure) 2- do indirect pulp cap (Very deep and close from pulp with Sclerotic/affected hard dentine) 3- prepare for endo ++++ (As long as there’s infection remaining) 132) In prevention of dental caries, the promotion of a healthy diet is: 1- low effective measure 2- moderately effective measure++++ 3- high effective measure 133) Treatment of cervical caries in old patients with a temporary restoration is best done by: a)Glass ionomer++++ b)composite resitn 134) Squamous cell carcinoma is a) multifactorial++++ 135) Most used sugar substitute: a) Sorbitol b) Mannitol c) Xylitol++++
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136) Follow up of RCT after 3 years , RC failed best treatment is to: a) Extraction of the tooth b) Redo the RCT++++ c) Apicectomy 137) Small access opening in upper central incisor in necrotic pulp leads to a) Complete removal of the pulp tissue b) Incomplete removal of the pulp ++++ c) better Conservation 138) Class II amalgam restoration with deep caries the patient comes with localized pain related to it after 3 months due to: a) pulp horn exposure b) over occlusion c) moisture contamination during the restoration++++ 139) Early Squamous cell carcinoma of the oral cavity presents as a) Vesicle b) A sessile mass c) Red plaque d) growing cauliflower like lesion ++++ 140) In recording mand-max jaw relation, the best material used without producing pressure is: a) Wax b) Compound c) zinc oxide & eugenol paste ++++ 141) acute abscess is: a) Cavity lined by epithelium b) Cavity containing blood cells c) Cavity containing pus cells ++++ d) Cavity containing fluid 142) The most close tooth to the maxillary sinus a)maxillary 1st , 2nd molar++++ b)maxillary bicuspids d) none of the above 143) 33 years old female patient. came with slow growing swelling in the angle of the mandible radiograph show radio-opaque with radio- lucent border diagnosis a) Osteoma b) Osteosarcoma++++ c) Cementoblastoma
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144) Reliability of the measurements reflects that property of the measurements which a) Measures what is intended to be measured b) Produces repeatedly the same result under a variety of conditions c) Detects reasonably small shifts, in either directions, in group condition d) All of the above++++ 145) Balanced occlusion refers to a) The type of occlusion which allows simultaneous contact of the teeth in centric occlusion only b) The type of occlusion which allows simultaneous contact of teeth in centric and eccentric jaw positions ++++ c) A type of occlusion which is similar to the occlusion of the natural teeth 146) In recent years there has been evidence that the prevalence and intensity of the caries attack has been diminished in the more economically developed countries mainly because of the widespread use of a) Artificial water fluoridation++++ b) Fluoride tooth paste c) Dental health education programs ++ (2nd most important) d) Individualized oral hygiene instruction 147) In terms of caries prevention the most effective and the most cost effective method is a) Community based programs++++ b) Privately based programs c) Individually based programs 148) In countries with higher annual population growth rates, the need for community based preventive programs would be greater for a) Dental caries ++++ b) Periodontal disease c) Dentofacial anomalies d) Dental fluorosis 149) Occlusal rest function: a) To resist lateral chewing movement b) To resist vertical forces ++++ c) Stability d) Retention 150) Which of the following may cause gingival enlargement a) Phenytoin (Dilantin) ++++ b) Cyclosporine c) Nifedipine d) Aspirin e) None of the above
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151) What is the best instrument used for removing unsupported enamel at the gingival wall of Class II a) Chisel b) Hatchet c) Gingival marginal trimmer ++++ 152) Dental caries a) Is transmissible disease b) Is worldwide in distribution but uneven in intensity c) Can be prevented d) All of the above ++++ e) None of the above 153) Radiographic diagnosis of bilateral expansile radioopaque areas in the canine premolar area region of the mandible is a) Hematoma b) Remaining roots c) Torus mandibularis ++++ d) Internal oblique ridge e) Genial tubercle 154) Mandibular foramen in children in comparison with it in the adults a) Above the occlusal plane b) Below the occlusal plane++++ (5 mm exactly below the occ. plane) c) anterior position 155) The choice of LA tech. depends on a) Diameter of nerve b) Structure of bone ++++ c) Number of branches d) Type of LA agent chemistry
Note that the Tech. itself is dependant on the bone type (compact/cancellous). while the type of the LA itself (with or without Adrenaline) is acc. to the patient systemic condition/health.
156) Dental plaque is composed mainly of a) Bacteria ++++ b) Inorganic material c) Food 157) Management of tuberosity fracture during extraction of maxillary molar is a) Replace and suture (ONLY IF PERIOSTEUM IS PRESENT) b) Remove and suture with primary healing (IF NO PERIOSTEUM TO AVOID NECROSIS) c) Replace and suture intra alveolar by wire++++ d) Remove and leave it to heal 158) the retainer of rubber dam a) 4 points of contact 2 buccally and 2 lingually without rocking+++ b) 4 points of contact 2 buccally and 2 lingually above the height of contour c) 4 points of contact 2 mesially and 2 distally d) 2 points 19 | P a g e
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159) In hairy tongue, which taste buds increase in Length: a)Filiform++++ b)Fungi form c)Foliate d)Circumvallates 160) the distal palatal termination of the maxillary complete denture base is dictated by the: a- tuberosity b- fovae palatine c- maxillary tori d- vibrating line++++ e- posterior palatal seal 161) in registering the vertical dimension of occlusion for the edentulous pt, the physiological rest position: a) is equal to the vertical dimension of occlusion b) may be exceeded if the appearance of the pt is enhanced c) is of a little importance as it is subjected to variations d) must always be greater than vertical dimension of occlusion++++ 162) Which of the following is a benign epithelial neoplasm? a)Rhabdomyoma b)Keratoacanthoma++ d)Fibroma c)Lipoma d)Granular Cell tumor 163) To a great extent, the forces occurring through a removable partial denture can be widely distributed and minimized by the following methods: a)proper location of the occlusal rests++++ b)selection of lingual bar major connector c)developing balanced occlusion d) all of the above 164) The posterior seal in upper complete denture serves the following functions a) It reduces the patient discomfort when contact occurs between the dorsum of the tongue and the posterior end of the denture base b) Retention of the maxillary denture++++ c) It compensates for dimensional changes which occur in the denture base d) all of the above 165) In growth, cartilages may give rise to bones: a)true++++ b)false
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166) The most common fissural abnormality is a) cleft palate b) cleft lip (least common) c) cleft lip& palate ++++ (most common & most complicated) (Source: Peterson’s page 841) 167) 7 years patient come with untreated trauma to tooth that became yellow in color what should you tell the parents a) pulp is dead b) pulp become calcified c) the tooth will resorb normally -a and b -a and c++++ -all of the above 168) Inferior orbital fissure located: -Lateral wall of the orbit & floor of the orbit.++++ 169) Provisional restoration for metal ceramic abutment is a) aluminum sheet b) stainless steel crown c) ZnO d) tooth colored polycarbonate crown++++ 170) In hypertension patient the history is important to detect severity a) true++++ b) false 171) In 6 week intra-uterine life the development start. the oral epithelium is stratified squamous epithelium will thickened and give dental lamina a) true++++ b) false 172) When take x ray in upper premolar to locate lingual root using mesial shift it will appear a) distal b) buccal c) lingual d) mesial++++ 173) A question about miswak: use toothbrush after every meal and meswak before praying and if you out side home use meswak++++ 174) Hypercementosis and ankylosis is seen in a) padget’s disease++++ b) monocytic fibrous dysplasia c) hyper-parathyroidism
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175) the infection will spread cervicaly in infection from a) lower incisors b) lower premolars c) lower 2nd and 3rd molars+++ d) upper incsisors 176) open bite is seen in a) lefort 2 b) unilateral condylar fracyure c) bilateral condylar fracture++++ 177) the first cervical vertebra is axis a) true b) false++++ (it’s Atlas) 178) in intra uterine life the mandible start to develop but clavicle starts before it a) true++++ b) false 179) in maxillary upper 6, 4th canal is in a) mesiobuccal++++ b) distobuccal c) mesio lingual d) lingual 180) osteoradionecrosis is more in a) maxilla b) mandible++++ c) no difference 181) in inflamed mucosa due to wearing denture, when to do new denture a) immediately b) after week c) put tissue conditioning material and wait until the tissue heal and take impression after++++ 182) schick intradermal test used in a)Tuberclosis b)tyhpoid c)diphtheria++++ 183) twins came to your clinic during routine examination ,you found great change behavior between both of them this due to a)hereditary b)environment c)maturation++++
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184) radioliucent lesion with scalloped border above inferior alveolar canal between roots of mandibular molars, this lesion is a)solitary cyst b)anyresmal bone cyst c) traumatic bone cyst / simple bone cyst ++++ 185) the use of low speed hand piece in removal of soft caries in child is better than high speed: a) less vibration b) less pulp exposure++++ c) better than high speed 186) gingival conditions occur in young adult has good oral hygiene was weakened: a) ANUG++++ b) desqumative gigivitis c) periodontitis d) gigivitis 187) healing after scaling : a) long junctional epithial ++++ b) new attachement 188) patient 6 years old came to your clinic after he had bicycle accident one day after,with swelling at his lower lip, clinical examination shows ,teeth didn’t hurt, what you will do a)x-ray ++++ b)endo for lower incisors c)pulpotomy 189) child 3 years old came to clinic after fallen on his chin, you found that the primary incisor entered the follicle for the permanant inicir what you will do a)surgical removal of the follicle b)leave it c)surgicall removal of the primary incisors++++ 190) Slow growing cyst at the site of 26,27,28 28 is missing I don’t remember the answers but mostly 191) Dr.black (GV black) periodontal instrument classification: study what the number represent in the instrument formula >>>>> 192) HBV disinfection: (enough with intermediate disinfection) a) iodophores+++ b) dettol / 100% ethyl alcohol (all alcohols are not recommended) c) hypcloride, ethyl d) a+b
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193) Dylantin (phynotoin) don’t give with : b)azoles c)metronidazole++++ d) all of the above 194) Pregnant 25 years, bleeding on probing, location on papilla of anterior area of the maxilla, isolated: a)giant cell granuloma b) pyogenic granuloma (pregnancy epulis)++++ c) giant cell granuloma 195) Porcelain, highly esthetic , anterior maxilla area, we choose: a) Dicor b) in ceram++++ c)impress 196) the highest strength in porcelain: a) ZR (zircon) reinforced in ceram++++ 197) To check TMJ range of movement: a) cranial imagery b) arthrography++++ (source : oxford dental hand book) c) traditional tomography d) computerized tomography 198) Amalgam pain after restoration due to: a) phase 2 gamma b) phase 1 gamma c) zinc containing alloy++++ d) admix alloy 199) an adult had an accident, maxillary central incisors intruded, lip is painful with superficial wound what is the trauma’s classification: a) luxation b) sublaxation c) laceration d) abrasion e) contusion. 200) Three year old pt, has anodontia (no teeth at all), what would you do: a) full denture ++++ b) implant c) space maitainer d) no intervention
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201) when sharpening instruments, unmounted stone has an advantage over mounted stone: a) doesn’t change the shape of the cutting edge b) easier to sterilize c) eats less of the blade++++ remember: we use water with synthetic stones, and oil with natural stones 202) for root caries (class V) what’s the best restorative material: a)composite resin b)G I ++++ c)Amalgam 203) after bleaching a tooth, we want to restore the tooth with composite resin, we don’t want to compromise the bonding, we wait for: a) 24 hours b) a week ++++ (ideal from 2-3 weeks : source “bleaching tech in resto. dentistry) c) choose a different material 204) Rubber dam is important because it: - improves safety++++ - looks scientific - Improves suction. 205) Yellow tooth after trauma for primary dentition: - hemorrhage of the pulp necrotic pulp - calcifying degeneration of the pulp++++
Remember that gray color means : pulp necrosis in children. Red color means : haemorrhage of the pulp
206) Swelling in the side of the face after inferior nerve block injection , you injected in: - Facial artery’s branches or Parotid gland 207) The most superior Cold test for pulp: - ethyl chloride - ice block++++ (cause it’s localized to one tooth only). - cold spray 208) study Ceramic crown preparation and depth of preparation - ceramic thickness: 1 - 1.5mm - metal thickness: 0.5mm - all ceramic thickness: 1.5- 2.0mm 209) Pregnant woman, prophylactic treatment: a) antibiotic++++ b) Corticosteroid c) GA, none d) None++++
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210) Pt wants to extract his tooth but the diagnosis is RCT, he can’t afford the RCT, what’s you action: a) Ask him to go to another dentist b) Give the advantage of keeping his tooth and how important it is and record his decision in his chart treat him as he wishes++++ c) Extract exactly 211) Root canal pathoses mostly : a) anaerobic obligated ++++ (1ry lesion) b) aerobic c) mixed 212) To take out a broken periodontal instrument from the gingival sulcus: a) Schwartz Periotrever ++++ 213) when take x ray in upper premolar to locate lingual root using mesial shift it will appear a) distal Don’t forget that: b) mesial++++ SLOB rule means c) buccal same lingual < > opposite buccal. d) lingual 214) tongue develope from: a) mandibular arch &toburclum impar b) 1st bronchial arch 215) endocrine and exocrine gland is : a) pancreas++++ b) pittury gland c) thyroid gland d) salivary gland e) sweat gland 216) which is the most likely cause of periodontal cyst: a) cell rest of malsze b) cell rest of serss c) cell of hertwig sheath ++++ 217) perforation during endo preparation what is the most surface of distal root of lower molar will have tendency of perforation: a) Mesial Surface++++ b) Distal c) Bucc d) Ling 218) isolated pocket in : -vertical root fracture++++ -palato gingival groove -endo origine lesion -all 26 | P a g e
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219) crown and root perforation: 1/ respond to MTA 2/ use matrix with hydroxiapatite and seal with G I 3/1&2++++ 4/root canal filling 220) 3rd generation of apexo locator: 1/ use with all pt 2/ need more research 3/increase chair time 4/ decrease radiographic film need++++ 221) acceptable theory for dental pain : 1/hydrodynamic++++ 2/fluid movement 3/ direct transduction 222) tracing of GP used for: 1/source of oeriapical pathosis++++ 2/acute periapical periodontitis 3/ periodental abscess 4/ none 223) occlusal splint device: 1/ used during increase vertical dimension++++ 2/allative muscle of mastication 3/ occlusal plane CR/CO 4/ALL 224) silane coupling agent: 1/ used with porcelain to enhance wetability of bonding++++ 2/ used with tooth and porcaline 225) when increase vertical dimansion you have to: 1/ increase minimal need 2/construct anterior teeth first thenposterior teeth 4/ use provisional crown for 2 months 5/all ++++ 226) Arrange the steps answer : [ca(OH)2 placing > varnish > base > amalgam] . 227) Radiolucent structure arround the roots of mandibular vital premolars -The mental foramen++++ 228) Expensile radioopaque structure at canine/ premolar area -Torus mandibularis++++ 27 | P a g e
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229) rigid palatal strap major connector the material of construction is -co-cr++++ -Gold ti -gold -wrought wire 230) x-ray periapical for immature tooth is -generally conculosive -simply inconculosive++++ -should be compered with antermere 231) prophylactic antibiotic needed in -anathesia not interaligamentary -suture removal -rotuine tooth brushing -orthodontic band++++ 232) >Soft palate falls abrubtly facilitates recording post dam. >Soft palate falls gradually makes recording post dam difficult. a) two statement true. b) two false.++++ c) first true ,second false. d) first false,second true. 233) prograssion of intial caries to cavatation takes 18 month this based on a) streptococcus mutans inatiate caries++++ b) lactobacillia progress caries 234) caries progress in childern more than adult due to a) differance in pH b) generalized dentin scalerosing by age++++ c) increasing in organic content of tubular dentin by age 235) post length increasing will a) increase retention ++++ b) increase resistant c) increase strength of restoration 236) the following is true about periapical lesions: a) When the source of irritation is removed healing in periapical area is good++++ 237) osteogensis during endodontic surgery / root re-sectioning is aimed to prevent a) fibrous in growth++++ Note: b) growth factor Root resection / Endodontic surgery = Apicectomy c) Formation of blood
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238) 60 YEARS old patient need to make complete denture with thick labial freanum with wide base the operation a) vestibuloplasty++++ b) z-plasty (if narrow base frenum) c) subperiostum incision d) deepmucoperiostum incision 239) child patient take sedation before appointment and present with physical vault what should dentist do a) constious sedation b) redo sedation ++++ c) tie with baboose board d) tie in unit with bandage ++ 240) class iii crown fracture in child patient the type of pontic a) ovate ++++ b) egg shaped c) hygienic d) ridge lap 241) lesion at junction between hard and soft palate and surrounded with psudoepithelium a) hyperplasia in salivary gland b) necrotizing sialometaplasia++++ 242) conditioning material of resected root a) citric acid ++++ b) phosphoric acid c) H2O2 d) EDTA 243) long tooth crown is managed by all of the following except a) easily intruded orthodontically++++ 244) the needle holder used in suturing of lower third molar a) curved haemostat++++ b) allis forceps c) Adson forceps 245) the structure of dye material is a) propylene glycoal base++++ 246) principle of elevator use of all the following except a) wheel and axle++++ 247) protocol of sterilization a) intial cleaning - inspection - clean - steralization - storage++++ b) inspection-clean-sterilization-store 29 | P a g e
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248) hand instrument which we used to make internal angles retentive grooves and preparation of cavity walls in the cavity is a) angle former++++ b) chisel c) file d) enamel hatched 249) amount of daily wear of amalgam ingested in the body a) 3-4 Microgram/ day b) 1-3 microgram / day++++ 250) amalgam keep under - fixer+++ (it should be expired diluted fixer solution). - developer - water 251) arrange the steps of cleft palate management a) measures to adjust speech b) establish way for nursing and feeding c) cosmetic closure d) prevent collapse of two halves Answer : b > d > a > c 252) instrument used to handle the needle a) curved haemostat++++ (or normal haemostat or needle holder) b) addison forceps Note: c) allis forceps Addson Forceps soft tissue forceps (toothed / soft) to hold 253) root canal irrigant used to kill E.feacalis a) NaoH b) MTA++++ c) saline
soft tissue , flaps …etc. Allis Forceps to hold intact orruptured cyst during removal & to remove epulis fissuratum.
254) oral surgeon put his finger on the nose of the patient and the patient asked to blow this done to check a) anterior extention of posterior palatal seal b) lateral extension of posterior palatal seal c) posterior extension of posterior palatal seal++++ d) glandular opening 255) patient with new amalgam restoration usually complains of pain with a) cold++++ b) galvanic c) hot
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256) testing a tooth with porcelain fused to metal with a) cold test b) cold and hot c) cold d) cold and hot e) cold with rubber dam++++ 257) cost effective method to prevent dental caries a) water fluoridation++++ b) flouridated tooth past 258) antifungal drug a) nystatin++++ 259) sharping of hand instrument mounted air driven better than unmounted due to a) fine grift++++ b) sterilization c) ability to curve instrument 260) die ditching means a) carving apical to finish line++++ b)carving coronal to finish line c) mark finish line with pen 261) instrument which we use to make groove in the wax is a) carver 262) hot oven relative to to autoclave a) the same time b) slightly higher time c) considerable higher time++++ d) lower time
Note: Hot Dry Oven : 160° 2 hours 200° 1 hour. Autoclave : 127° 15-25 minutes 134° 3-5 minutes.
263) bronchial asthma epinephrine concentration subcutaneously a) 1/1000++++ b) 1/10000 c) 1/100000 264) patient with leukemia Neutrophilic Count (ANC) is 1700 what oral surgeon should do a) go on the maneuver Note: b) postpone another day Normal ANC is 1400 – 1600. c) work with prophylactic antibiotic ++++ d) platelets transfusion
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265) pain of short duration with hot and cold a) dentin sensitivity ++++ b) irreversible pulpitis c) chronic pulpitis d) apical periodontitis 266) cyst in x- ray a) radiolucent with bone expansion++++ b) radiolucent with bone resorption 267) pt. presented after insetion of complete denture complaining of dysphagia and ulcers what is the cause of dysphagia a) over extended ++++ b) over postdammed c) under extended d) under postdammed 268) color of normal gingiva in interplay between : a) Keratin, b. vessels, melanin and epithelial thickness ++++ 269) To select the shade of a tooth from a shade guide: - Under light - Dry tooth - None of above++++ 270) black pt. came seeking for white teeth what should dentist do: - Show photos of other pt’s ++++ - Do not show white teeth - Tell him firmly that these teeth are good 271) progression of initial caries to cavatation takes 18 month this based on - strepto.mutans inatiate caries++++ - lactobacillia progress caries 272) the vertical fracture of the tooth detected by - periodontal pocket (not conclusive) - radiographically++++ (appears as a J-shaped lesion along the root affected) - vertical percussion (not conclusive) 273) cost effective method to prevent dental caries - water fluoridation++++ - flouridated tooth paste 274) Amalgam restoration and there is also gold restoration in the mouth what should dentist do? a) change restoration ++++ b) put separating medium c) wait d) put varnish 32 | P a g e
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275) the temperature of melting gutta percha a) 70 -160++++ 276) for preparation reduction for functional cusp is : a) 1.5mm b) 2 mm++++ 277) Pt came after 24 month of tooth replantation which had ankylosis with no root resorption it most likely to develop root resorption in: a) reduce greatly ++++ b) increase c) after 2 years d) after 4 years 278) Child with vesicle on the hard palate with history of malaise for 3 days what is the possible diagnosis: a) herpes simplex ++++ (OR Herpes Zoster) b) erythema multiform 279) 5 years old pt had extraction of the lower primary molar & he had fracture of the apex of the tooth what is the best treatment : a) aggressive remove b) visualization & remove c) visualization & leave ++++ 280) 7 y/o boy came to the clinic in the right maxillary central incisor with large pulp exposure: a) pulpectomy with Ca(OH)2 Pulpotomy/ Apexogenesis: in case of healthy pulp tiss. / small b) pulptomy with Ca(OH)2 ++++ exposure. c) Direct pulp capping Pulpectomy: in case of infected pulp / Large exposure. Apexification: in case of open apex with infected / dead pulp. d) leave it 281) 30 years old pt came to the clinic with brownish discoloration of all his teeth (intrinsic discoloration) & yellowish in U/V light the most likely cause is: a) flourosis b) tetracycline ++++ c) amelogensis imperfecta d) dentogensis imperfecta 282) Pt came to the clinic complaining from soreness in the tongue sore throat the diagnosis is: a) burning mouth syndrome ++++ b) geographical tongue c) fissure tongue 283) Mucoceles the best ttt is: a) Excisional ++++ b) leave it c) marspuilization (For Ranula Only) d) cauterization 33 | P a g e
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284) The most common professional use of flourid in peado are: a) Acidulated phosphate flouride (APF)++++ 285) wax properties are: a) expansion b) internal stress++++
APF : Na2F / Stannous Flouride in an acidic medium of Phosph. Acid. PH : 3/4
286) old pt came to replace all old amalgam filling he had sever Occlusal attrition the best replacement is: a) composite b) amalgam c) cast metal restoration d) full crowns++++ 287) Teenager boy with occlusal wear the best treatment is: a) remove the occlusal b) teeth capping ++++ c) restoration 288) baby born without which bacteria: a) Streptococcus mutans++++ 289) avulsed tooth: a) splint 7-14 day ++++ b) 3- 14 weeks 290) difference between gracy curette & universal curette: - Cross section in Gracey is semicircular and in universal is triangular. - Gracey has one cutting edge while universal has two cutting edges. - Gracey has a certain site to work on per instrument, while universal can be applied any where - in the dentition - Gracey has offset of 60°, while universal has offset of 90° - All of the above. - b, c, d++++ 291) Acute periapical abscess & acute periodontal abscess are differentiated by: a) vitality test ++++ 292) Mobility of the midface bilateral in frontozygomatic suture: a) lefort III ++++ 293) Etching dentine is : a) 15 sec ++++ 294) Polishing bur have: a) more than 12 blade ++++
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295) rampant caries in adult in anterior teeth restore by: a) GIC ++++ 296) best provisional restoration coverage for anterior teeth is: a) tooth colored poly carbonate crown++++ 297) disinfection of gutta p : a) chemical solution ++++ (chlorohexidine &/or NaOCl) Page | 38
298) during post removal the first thing to do is: a) remove the G.P b) remove all the old restoration & undermined enamel & caries ++++ c) insertion of post immediately 299) Young pt complete the orthodontic treatment. Upon removal we found white spot in ant. Teeth. how to restore a) microscalar then fluoride application++++ (Prevention) b) composite veneer. 300) Epliptic pt should not take which drug a) aspirin b) metronidazole ++++ 301) Pt came with small trauma of the lower lip & discoloration of his tooth what is the name of this condition a) abrasion & subluxation b) laceration & subluxation ++++ 302) Young pt came without any complain during routine X ray appear between the two lower molar lesion diameter about 2mm & extend laterally with irreg. shape what’s the type of cyst a) dentigerous cyst++++ b) apical cyst c) radicular cyst 303) Pt had generalized lymphoadenopathy. the diagnosis is? a) infection + b) HIV ++++ 304) Nitrous oxide effect to? a) vit A b) vit B6 c) vit B12++++ 305) Defect factor VIII is which kind of hemophilia? a) Hemophilia A++++ (defect factor 9 : hemophilia B)
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306) It has been proven that amalgam restoration has the following characteristics - Micro leakage decrease with aging of the amalgam - It is the least technique sensitive of all current direct restoration - High dimensional changes Choose the appropriate answer: - 1,2 & 3 - 1&3 - 1 & 2++++ - 2 only 307) To distinguish periapical and periodontal abscess we use a) X-ray examination b) Clinical examination c) Vitality of the pulp++++ 308) Single rooted anterior teeth needs endodontic treatment which is best treated by: a) Casted post & core. ++++ b) Preformed/ Prefabricated post & composite. c) Preformed post & amalgam. d) Composite post & core. 309) Squamos cell carcinoma is a malignant from a)skin b)mucous membrane c)glandular tissue d)mucous epithelial membrane++++ 310) The antibiotic of choice in endodontics a) Metronidazoles b) Penicillin &…. ++++ c) Tetracycline 4)Erythromycins 311) Selection of shade for composite is done: a) before preparation++++ b) we must rest the eye by looking to a yellow color. c) we must look to the tooth only 5 sec++++
To rest the eyes, NEVER YELLOW, but high contrast colour : Ex. Blue/green “towel of the patient”
312) Commonly, after placement of amalgam restoration pt. complain from pain when eating a) Hot b) Cold++++ c) sweet 313) Irrigation solution for RCT ,when there is infection and drainng from the canal is a) Sodium hypochlorite b) Iodine potassium c) sodium hypochlorite and iodine potassium ++++ 36 | P a g e
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314) Time of curing of dentin a) 10 secs b) 15 secs c) 30 secs ++++ d) 60 secs 315) Squamous cell carcinoma is a) multifactorial ++++ 316) If tooth or root is pushed during surgical extraction into maxillary sinus a) Leave it and inform the patient b) Remove it as soon as possible ++++ c) Follow the patient for 3 months d) None of the above 317) for discharged sharp instrument (blades, needle tips, wedges, …etc) put in : a) dicharged paper basket b) disgned sharp instrument special container++++ c) disinfectant in auto glave then throw d) put it in multifoil 318) what is the time bet. the first onset of HIV virus and the appearance of acute symptoms : a) 1-5 years b) 9-11 years++++ c) no specific time is known d) above 10 years 319) why the moisture heat sterilization is better than dry heat sterilization a) makes the instruments less rusty and blunt b) needs more time and affects the proteins of the cell membrane c) needs less time and affects the proteins of the cell membrane++++ 320) Periodontal ligament fibers in the middle third of the root is a) Oblique++++ (most of the PDL fibers) b) Horizontal c) Trans-septal 321) Autoclave relative to 100f dry oven a)the same time b)slightly higher time c)considerable higher time d)less time++++ 322) pt came after few days from insertion complete denture ,there is no complain ,except the sound specially letter he say it like (v), the reason is ? a)the anterior upper teeth are upward from the lip line++++ b)the anterior upper teeth forward from the lip line 37 | P a g e
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323) father for child 12 year patient, asked you about the age for the amalgam restoration of his child, you tell him: a)2 years b)9 years c)2 decades++++ d)all life 324) pt have unilateral fracture of left the condyle the mandible will a)deviate to the left side++++ b)deviate to the right side c)no deviation 325) pt have a complete denture came to the clinic ,tell you no complaint in the talking ,or in the chewing ,but when you exam him ,you see the upper lip like too long ,deficient in the margins of the lip, reason is a)deficiency in the vertical dimensional b)anterior upper teeth are short++++ c)deficiect in vit B 326) pt with complete denture come to your clinic ,complaining from his dry mouth ,the proper medicine is a)anti diabetic medicine b)anticordial ++++ c)steroids 327) reduction in the incisal edge for metal porcelain crown is a)1mm b)1.5mm c)2mm++++ d)4mm 328) for 3 years child, the toothpaste with fluoride for him is a)recommend++++ b)not useful c)toxicity d)must not be used 329) 4 year child come to restore his lower, first molar with destruction in 3to 4 surfaces ,the best restoration a)amalgam b)full porcelain crown c)full metal crown++++ d)extraction
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330) female come need to endodontics for central incisal ,and have compsite restorations in the mesial and distal walls ,and have attrition in the incisal edge the best restoration? a)jacket crown b)full crown++++ c)metal cown 331) child 10 years came with trauma on the center incisor from year ago ,and have dis coloring on it , in the examination ,no vitality in this tooth ,and in the x ray there is fracture from the edge of the incisal to the pulp ,and wide open apex the best treatment ? a)calcification++++ b)RCT with gutta percha c)extraction d)capping 332) pt with hepatitis B, the best sterilization is - formaldehyde - detol+100%alkohol - iodophores ++++ - a&b ++++ - a&b&c 333) the best core material in the anterior teeth is? a)composite++++ (Casted P & C is better) 334) how can you alter the sitting time for alginate a)alter ratio powder water++++ b)alter water ratio c)we can’t alter it d)by accelerated addition
To increase Alginate setting time: 1. Use cold water & spatula. 2. Increase water 1.6++++ d) only if < 1.6 568. patient after ortho treatment on x-ray there's resorption d. diabetec patient 597. the 1st appearance of syphilis a) Ulcer++++ 598. At which temperature that gutta percha reach the alpha temp: a- 42-48 c++++++++++++++++++++++++ b- 50-60c c- 70-80c d- 100c 599. Periodontium consists of: a- Gingiva – periodontal ligament- aleveolar bone-Cementum++++ 600. The x ray show scattered radioopaque line in the mandible jaw the diagnosis will be: a- Paget disease b- Garres syndrome c- Fibrous dysplasia d- Osteosarcoma 601. All these shows honey combed bone radiographically except: a- Ameloblastoma b- Odontogenic myxoma cyst c- Odontogenic keratocyst d- Adenomenated tumor++++ 602. Flouride amount in water should be: (the exact is 0.7 to 1.2 mg/l with max of 1.5) a- 0.2-0.5 mg/liter b- 1-5 mg/liter c- 1-2 mg/liter++++ d- 0.1- 0.2 mg/liter 603. Most common type of cyst: a- Radicular cyst++++ 67 | P a g e
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604. the moist autoclave reaches 100c compared the dry heat : a- Lesser time++++ b- Longer time 605. 6 artificial mand ant teeth opposes maxillary (dental decks) a) resorption of the mandible anteriorly++++ 606. what is the maximum time for amalgam till to be to its place after tirturation: a- 1min b- 3min++++ c- 6min d- 8min 607. The most superior way to test the vitality of the tooth with: a- Ice pack++ b- Chloro ethyl c- Endo special ice++++ d- Cold water spray 608. The way to remove mucocele is a- Radiation b- Excision++++ c- Chemotherapy d- Caterization 609. Functional cusp reduction of onlay: a- 0.5 b- 0.1 c- 1.5 ++++ d- 2 610. Gingival retraction : 1- To expose the sub gingival area to take good impression to the uncutted portion of the tooth 2- To prepare the tooth to the final impression 3- Necessary even if there’s inflamation 4- Has several methods but the most popular is the retraction cord a) 1&2 correct b) 1 only c) 1, 2 and 4++++ d) 2,3 611. All these are contraindicated to RCT except: a- Non restorable tooth b- Vertical root fracture c- Tooth with insufficient tooth support d- Pt who has diabetes or hypertension++++
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612. Sharpening the curette and sickle, the cutting edge should be at angle: a- 50-60 b- 70-80++++ c- 80-90 d- 60-70 613. Hypersensitivity is due to: a- Exposed dentine with opened dentinal tubules++++ b- Obliterated dentinal tubule 614. Avulsed tooth is washed with saline water, it should be replaced again: a- Immediately++++ b- After 2 hours c- 24 hr’s NOTE IT SHOULDN'T BE WASHED WITH TAP WATER ASASAN+++++++++++ 615. A 10 yr’s old child, who is unable to differentiate the colors, and cant tell his name, or address He is acting like : a) 3 years old+++++ b) 4 years old c) 10 years old 616. Patient presented to u complain of click during open and close. Thers is no facial asymmetry except when opening , What is the diagnosis a) internal derangement with reduction++++++ b) internal derangement without reduction c) reumatoid arthritis 617. To check a perforation in the desk of the tmj we need: a) cranial imagery b) arthrography++++ (CT after injection of a high contrast fluid) c) traditional tomography d) computerized tomography++++ 618. Patient have unilateral fracture of left the condyle the mandible will a)deviate to the left side++++ b)deviate to the right sige c)no deviate 619. Child has a habit of finger sucking and starts to show orodental changes, the child needs: a- Early appliance++++ b- Psychological therapy 620. Amount of daily mercury ingestion in the body due to wear of amalgam is: a) 1-3 μg.++++ b) 3-5 μg. 69 | P a g e
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621. Patient comes to your clinic complaining that the denture become tight, during examination you notice nothing, but when the patient stand you notice that his legs bowing (curved). What you suspect: a) Paget’s disease.++++ 622. A 55 year old patient with multi-extraction teeth, after extraction what will you do first: a) Suturing. b) Primary closure should be obtained if there is no luntant tissue. c) Alveoplasty should be done in all cases.++++ 623. Child with traumatized lip, no tooth mobility, what will you do first: a) Radiograph to check if there is foreign body.++++ b) Refer to the physician for sensitivity test. 624. How do you know if there are 2 canals in the same root: a) Radiographically with 2 files inside the root. b) The orifices are close to each other. 625. Weeping canal: a) Calcium hydroxide.++++ b) GP. 626. Patient with lupus erythematous and under cortisone, he needs to surgical extraction of a tooth. What should the surgeon instruct the patient: a) Take half of the cortisone dose at the day of operation. b) Double the cortisone dose at the day of operation. c) Take half of the cortisone dose day before and at the day of operation and day after. d) Double the cortisone dose day before and at the day of operation and day after. 627. Hunter Schreger bands are white and dark lines that appear in: a) Enamel when view in horizontal ground. b) Enamel when view in longitudinal ground.++++ c) Dentin when view in horizontal ground. d) Dentin when view in longitudinal ground. 628. Laser core can be used in curing of composite: a) ND (YAG). b) HeNe. c) Argon / Hallogen led.++++ 629. During endo patient is complaining of pain with percussion, no fluid extrusion. What do you suspect? a) Apical periodontitis. b) Secondary apical periodontitis.++++ c) Over instrumentation. d) Over medication.
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630. To drain submandibular abscess: a) Intraorally through the mylohyoid muscles. b) Extraorally under the chin. c) Extraorally at the most purulent site. d) Extraorally at the lower border of the mandible. ++++ 631. The aim of biomechanical process during endo is to allow: a) GP reach the apex. ++++ (removal of all infected pulp and dentine & deprid material) b) Debridement materials reach the apical area. 632. The aim of treatment maintenance is: a) Prevent secondary infection.++++ b) Check tissue response. 633. Systemic treatment of oral candida: a) Nystatin. (topical) b) Amphotericin. c) Fluconazole.++++ (SYSTEMIC) 634. Most tooth surface affected by caries: a) Pit and fissure.++++ b) Root surface. c) Proximal surface. 635. the impression material of choice when we want to take impression for epoxy resin pin is: a) Polysulfide. b) Polyether. 636. Streptococcus activity detected by: a) Fermentation.++++ b) Catalase. 637. Tooth with full crown need RCT, you did the RCT through the crown, what is the best restoration to maintain the resistance of the crown: a) Glass ionomer resin with definite restoration.++++ 638. Cantilever design should has all except: a) Small in all direction. b) High yield strength material. c) Short occlosogingival.++++ (he means the abutment here) d) Under occlusal. 639. To hasten Zinc Oxide cement, you add: a) Zinc sulfide. b) Barium sulfide. c) Zinc acetate ++++ (Already found in the Catalyst tube in the ZnO Eug paste) d) Barium chloride. 71 | P a g e
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641. A question about Cleidocranial dysostosis characteristic: - Partly or completely missing collarbones. If the collarbones are completely missing or reduced to small vestiges, this allows hypermobility of the shoulders including ability to touch the shoulders together in front of the chest. - A soft spot or larger soft area in the top of the head where the fontanelle failed to close. - Bones and joints are underdeveloped. People are shorter and their frames are smaller than their siblings who do not have the condition. - The permanent teeth include supernumerary teeth. Unless these supernumeraries are reabsorbed before adolescence, they will crowd the adult teeth in what already may be an underdeveloped jaw. In that case, the supernumeraries will probably need to be removed to provide space for the adult teeth. - Permanent teeth not erupting - Bossing (bulging) of the forehead. - Hypertelorism 641. Endomethasone is a root canal sealer that: a) Dissolve in fluid so it weakens the root canal filling. b) Very toxic contain formaldehyde. c) Contain corticosteroids. d) All the above.++++ 642. Child came to the clinic with amalgam restoration fracture at isthmus portion, this fracture due to: a) Wide preparation at isthmus. b) High occlusal. c) shallow preparation d) constricted isthmus 643. Child with mental disorder suffer from orofacial trauma, brought to the hospital by his parents, the child is panic and Irritable, the treatment should done under: a) Local anesthesia. b) General anesthesia.++++ c) Gas sedation. d) Intravenous sedation. 644. Fracture before 1 year of upper central incisor reach the pulp in 8 year old child. how will you manage this case a) RCT. b) Apexification.++++ c) Direct pulp capping d) Indirect pulp capping. 645. To remove a broken periodontal instrument from the gingival sulcus: a) Schwartz Periotriever.++++
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646. Reliability of the measurements reflects that property of the measurements which a) Measures what is intended to be measured. b) Produces repeatedly the same result under a variety of conditions. c) Detects reasonably small shifts, in either direction, in group condition. d) All of the above.++++ 647. The rows show “truth”, the column show “test result”o a) Cell A has true positive sample.++++ b) Cell A has true negative sample. c) Cell A has false positive sample. d) Cell A has false negative sample 648. indirect retainers mostly needed : a. class IV (NEEDED ONLY ON VERY LONG SPAN) b. class I++++ c. class III d. class III with modification 649. lingual plate : a. shallow sulcus b. mobile anterior teeth c. deep sulcus 650. which palatal form is more retentive and offers better stability to complete denture : a. v shaped b. wide palate++++ c. u shaped d. flat palate 651. biological width a. 1 mm b. 2mm++++ (exactly 2.03 mm) c. 3mm d. 4mm 652. dentine permeability increases a. coronal less than root dentine b. permeablity increase toward DEJ++++ c. permeablity increase toward BCJ 653. upper teeth palatal mucosa supplied by : a. nasopalatine b. anterior palatine c. both d. post superior alveolar nerve
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654. pt with severe pain in lower left mandibular molar, examination positive pulp test , percussion test, no radiographic abnormality, Rt side has recent fpd upper : a. chronic apical periodontits b. actue apical periodontitis c. apical abcess d. None of the above 655. epithelial cells a. rest of malassez decrease with age b. rest of malassez increase with age c. hertwig sheath entirely disappear after dentinogenesis d. epithelial remnants could proliferate to periapical granuloma 656. Pt with complete denture complain from tigthness of denture in morning then become good this due to a) relif of denture++++ (because there may be pressure points or areas that the tissues will try to adjust to it throughout the day) b)lack of cheeck elastisty (pressure on the flanges displacement of denture) c)poor post dam (no posterior seal displacement of denture) 657. Pt construct for him a complete denture after few days he came to u complaining from pain & white spots on the residual ridgeu do relife in that area & give him ointment & after few days he came again complaining the same but in another area the main cause is : a. uneven pressure on the crest of alveolar ridge++++ b. increase vertical dimension 658. To prevent gingival injury place the margin of the ponetic:2. a. at the level of gingival crest b.above gigival crest c. apical to g . crest 1 mm d. apical to g. Crest ...... mm 659. Aborder line diabetic pt came with denture stomatitis you find abrundant depris in the tissue surface area of the denture>>the proper managgement is: a. systemic antibiotic b. topical antifungal++++ (topical + relining with a tissue conditioner + rest of tissues at night + good oral hygiene) c. systemic antifungal d. topical antibiotic 660. in a curved root u bent a file by4. a. put guaze on the file & bend it by hand++++ (to avoid finger injury/infection by accidental piercing of the file) b. bend the file by plier c by bare fingure d. by tweezer
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661. pain in central incisors from a. central &lateral incisors++++ b. lateral & canine c. canine & premolar d. premolar & molar 662. to treat non vital tooth with open apex when doing access openning with gates glidden bur take care to : a. remove all dentin b. remove minimal dentine c. follow conservative method 663. child with previuos history of minor truama with excessive bleeding we do test the result is prolonged PT & slightly increse clooting time& .........test is positive the diagnosis is a. hemophelia b b. thrombocytopenia c. deficincy in vit. K 664. 20 years old pt have avulsed tooth for 60 min the managment to retun vascularity of the tooth: a. scrap the surface of the root (NEVER DO THIS) b. place the tooth in sodium sulfideof X%.... c.place it in sodium chloride then sodium sulfide 665. Pt need complete denture u take impression with irreversible hydrocolloid & poured it after late more than 15 min the cast appear sort & chalky the reason is: a. dehydration of the impression b. expansion of the impression c. immersion the impression in a chemical solution ++++ (irreversible hydrocolloids = Alginate, a disinfectant as sodium hypochlorite or dettol can affect the surface details of the alginate if the timing was not correct ) 666. A 60-year-old man has been treated for a T2NOMOsquamous cell carcinoma by radical radiotherapy. He has a history of chronic alcoholism and was a heavy smoker. Six years after treatment, he develops apainful ulcer in the alveolar mucosa in the treated area following minor trauma. His pain worsens andthe bone became progressively exposed. He is treated by a partial mandibular resection with graft The diagnosis is a. acute osteomylitis b. gerre,s osteomylitis c. osteoradionecrosis d. chronic osteomylitis 667. after completion of orthodontic treatment he came complaining of pain in 11 tooth radiograph show resporption in the middle third of the root of 11 wt is the proper managment: a. apply caoh at the site of resorption++++ b. do r.c t in a single visit c. extract the tooth & reimplant it d. extract the tooth & do implantation 75 | P a g e
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668.
why we use acrylic more than complete metal palate in complete denture: a. Can’t do relining for the metal. b. ???????????? .
669.
Coronal suture of the skull join : a. parietal bone b. Frontal with parietal bone* c. Parietal with occipital d. Temporal with occipital bone
670.
The tip of size 20 endo file is : a. 0.02 b. 0.2*
671. In FPD in upper posterior teeth we should have gingival embrasure space to have healthy gingival so the contact : a. in the middle b. depend in the opposing occlusion 672.
Contraindication for endo treatment except: a. non strategic tooth b. non restorable teeth c. vertical fracture teeth d. tooth with large periapical lesion
673.
In porcelain we should do good condensation . why? a. reduce porosity
674.
Etching of the enamel with a. 35% phosphoric acid
675.
8. Bonding agent for enamel we use: a. unfilled resin primer & adhesive bonding agent b. resin dissolve in acetone or alcohol c. primer with resin modified glass ionemer
676.
Most of the amalgam restoration broken because of: a. un proper design b. un proper amalgam condensation
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677.
We redo high copper amalgam restoration when we have: a. amalgam with proximal marginal defect >food accumulation b. open margin less than 0.5 mm
678.
Complex amalgam restoration when to do it: a. week of the cusp with undermine enamel b. bevel and contra bevel c. week cusp should strengthen it by resin
679.
Matrix use to restore small class II with amalgam restoration: a. Toflemire
680.
Most important sealer criteria to be success : a. high viscosity b. high retention c. high strength d. can add colorant e. High resilience
681.
Discoloration of endo treated teeth: a. hemorrhage after trauma b. incomplete remove GP from the pulp chamber c. Incomplete removal of pulp tissue
682.
Bacteria release from bacteria in endo canal…..: a. from dentin bacteriods
683.
Cast with (+ve) bubble because of: a. Mixing stone b. Voids in impression when taken by the dentist. c. pouring d. Using warm water when mixing ston.
684.
Non absorbable suture: a. catgut b. vicryl c. silk*
685.
most important criteria for full ceramic FPD: a. high compressive strength b. High tensile strength.
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686. Balance occlusion should be utilize in natural dentition . & may all or some of the teeth contact in both side regardless where mandible move. a. 1st true & 2nd false b. 1st false & 2nd true c. both false d. both true 687.
Balance occlusion in complete denture help in: a. retention b. stability
688.
Reciprocal arm in RPD help to resist the force applied by which parts: a. retentive arm* b. guide plane and …
689.
pt come with pain tooth When drink hot tea suffers pain continuous for 10 minutes diagnosis: a. irreversible pulpitis* b. necrotic.
690.
Thickness of amalgam in complex amalgam restoration in cusp tip area : a. 0.5 mm b. 1-1.5 mm c. 1.5-2 mm d. 2-3 mm
691.
Pulp with age: a. reduce collagen fiber b. Increase cellular in pulp c. decrease pulp chamber size.
692.
Polysulfide should pour: a. within 1 h b. within 12 h c. within 1 week
693.
lingual bar contraindication : a. short lingual sulcus b. long lingual sulcus c. too crowded lower anterior teeth
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694.
over extended GP should remove using: a. Ultrasonic vibrating. b. Dissolving agent and mechanical removal. * c. Rotary or round bur. d. surgery
695.
Sterilization mean killing: a. Bacteria and virus -. b. Bacteria, virus, fungus and protozoa c. Bacteria and fungus
696.
killing Bacteria is: a. Bacteriostatic b. Bactericidal.*
697.
Lichen planus characteristic : a. white straia ?? - -
698.
with children rubber dam not use with: a. hyperactive patient b. obstructive nose c. patient with fixed orthoappliance d. mildly handicapped and uncooperative.
699.
ca(OH) PH: a. 12
700.
the most technique use with children: a. TSD* b. hand over mouth c. punishment d. reward child for his +ve behavior
701.
what’s the time for child to start brushing: a. when the 1st teeth erupt b. 2 years old
702.
eruption bluish cyst treatment: a. no treatment.
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703.
704.
chronic pericoronitis: a. Difficult mouth opening b. Halitosis c. all of the above Relining of denture: a. remove all or part of fitting surface of the denture and add acrylic b. add acrylic to the base of the denture to increase vertical dimension.
705.
safe months to treat pregnant ladies: a. 1-3 b. 4-6 c. 7-9
706.
Mandibular 1st permenant molar look in morphology as: a. primary 1st mand molar b. primary 2nd mand molar* c. primary 1st max molar d. primary 2nd max molar
707.
graft from one part to another in the same person called: a. Autograph b. Allograph
708.
Optic nerve coming from which bone: a. sphenoid bone b. zygomatic c. palatal
709.
Material which used for flasking complete denture: a. Plaster b. stone c. refractory
710.
the primary source of retention of porcelin veneer a. mechanical retention from under cut b. mechanical retention from secondry retentive featurs c. chemical bond by sialine coupling agent d. micromechanicalbond from itching of enamel and porceline
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711.
about general ana the pt contraindicated a. asa group 1 ,2 b. young pt c. providor convenance d. pt enter and leave at the same day
712.
pt has bad oral hygine and missing the right and left lateral insicor what ttt a. implant b. rpd c. conventional fpd d. myrelad bridge
713.
contra indication of implant a. many dental caries b. malignancy c. radiation therapy
714.
Dentinogenesis imperfect has all except: a. Easily fractured bone b. Easily fractured enamel c. Blue sclera d. Supernumerary teeth
715.
since in composite tooth prep shoud be conserfetive so the design a. amalgam in moderate and large cavities b. beveld amalgam margines c. conservitive restorations preparation of all incipiant cavity withen enamel
716.
aquired pelicle a. structures layer protect tooth b. aid in remenarization
717.
Radiographic evaluation in extraction except: a. Relationship of associated vital structures. b. Root conviguration and surrounding bone condition. c. Access to the tooth, crown condition and tooth mobility.* d. All of the above e. e. A & B
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718.
Tooth require RCT with bone resorption..terminate RCT at: a. Radiographic apec b. 0.5-1 mm short of radiographic apex* c. 0.5-1 mm beyond radiographic apex
719.
Floss used to: a. Remove interproximal plaque* b. Remove overhangs c. Stimulate gingival Incipient caries a. Surface zone is relatively unaffected b. The surface zone is the largest portion with the highest pore volume c. Tooth preparation and composite is the best treatment d. Pulpal reaction is not possible* e. Carries progress in enamel faster than dentin.
720.
721.
In recent years caries reduced in developed countries mainly due to: a. Water fluoridation b. Fluoride toothpaste c. Dental health education programs. d. individualized oral hygiene care.
722.
Osteomylitis more common a. Maxilla b. Mandible* c. Zygoma d. Nasal septum e. Condyle
723.
Avulsed teeth stored in a. Milk* b. Water
724. 30 year old patient all first molars carious and suspected pit and fissure areas of the second molars. Treatment plan: a. Restore all first molars and observe second molars. b. Restore all first molars and topical fluoride on second molars. c. Restore all first molars and seal pits and fissures of second molars*. d. Restore first and second molars with composite. e. Restore first and second molars with amalgam.
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725.
Moon face appearance is not present in: a. Le fort I. b. Le fort II. c. Le fort III d. Zygomatic complex. e. Le fort II and Le fort III.
726. A female patient with a swelling in left of mandible, slowly increasing , radio opaque surrounded by radiolucent band a. Osteoma b. Ossifying fibro c. Cementoblastoma 727.
retention of amalgam depends on a. amalgam bond b. convergences of walls Occlusal c. divergence of walls Occlusal d. retentive pins .
728.
6 yrs old , lost lower rightt and left 1st primary molar, space maintainer is a. lingual arch b. bilateral distal shoe c. bilateral band and loop
729.
pedo, has trauma in 11 , an hour ago , with slight pulpal exposure , open apex, treatment is a. pulpotomy with formacresol b. apexification c. DPC
730.
Student, came to clinic with severe pain, interdental papilla is inflamed,, student has . a. Gingivitis b. ANUG c. Periodontitis
731.
fructured max tubrosity a. replace and suture b. replace and fix by wires
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732.
which of following resto more likely to cause wear to opposing : a. composite b. gold c. porcelain d. amalgam
733.
supra gingival calculus a. easly detached b. hard and rough c. contain saliva component
734.
In restoring lost tooth, which is least important : a. Esthetic b. patient demand c. function d. arch integrity and Occlusal stability
735.
one of the main cause of malocclusion: a. premature loss of primary teeth
736.
choice technique of local anesthesia influenced by a. diameter of n b. number of n c. bone structure d. chemical comp of anesthesia
737.
biological width a. epith + ct Only b. epith, + ct + sulcus
738.
bone graft material from site to another site in the same person a. allograft b. auto graft c. alloplast d. xenograft
739.
ester type of local anath secreted by a. liver only b. Kidney c. Lung
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740.
energy absorbed by the point of fracture called a. ultimate strength b. elastic limit c. toughness d. brittleness
741.
Patency filling a. push the file apically to remove any block at the apex b. rotate the file circumferintioally at the walls to remove any block of lateral canals c. Rotary files................. d. file with bleatching agent
742.
best stress trasfeer under amalgam a. with thin base layer b. with thick base layer c. if put on sound dentin
743.
the type of cement witch give retention to crown a. zn phosphate b. zn polycarpoxylate c. resin d. resin modified glass ionomer
744.
to disinfect gutta percha: a. Chemical agents
745.
type of outoclave used a. hot oven outoclave b. class b autoclave c. class s autoclave d. class d autoclave e. Extraction
746.
Acidulated phosphat flouride a. 1% flouride ions b. 1.23% c. 2% d. 2.23% e. 3% mix in
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747.
walking non vital bleatching a. H2O2 with phospha b. superexol with sod parporate c. superexol with ca hydroxide d. h2o2 with ...............
748.
minimum thickness of nobel metal crown a. .1 mm b. .5 mm c. 1 mm d. 2 mm
749.
to locate the canal orifice use a. briate probe b. endo spreader c. endo file with curved tip d. round bur
750.
healing by secondary intention cause a. there is space between the edges filled by fibrous tissue b. leading to scar formation c. a and b
751.
Dry socket appear after extraction by a. 24 hours b. 2-3 days c. 1 week
752.
local contraindication of extraction a. pt recent receive radiotherapy b. tooth in the malignant tumor c. both a and b
753.
amount of local anesthesia a. 3.6
754.
the most affect tooth in nurse bottle feeding a. lower molars b. upper molars c. max incisor d. mand insicor
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755.
couses of fainting in dental chair a. vasovagal attack
756.
contraindication of gingivectomy a. periodontal abscess
757.
all deticting the landmarks of upper denture a. posterior vibrating line b. anterior vibrating line c. fovea palatine d. hamular notch
758.
preservation of peridontal health a. regular removal of dental plaque
759.
When do we do incision and drainage? a. Indurated diffuse swelling b. Sinus tract c. Chronic apical periodontitis.
760.
Pregnant lady needs oral surgery: a. Needs prophylactic antibiotic. b. Needs under GA c. Needs steroid cover d. None of the above
761.
When do we give antibiotic: a. Widespread, rapid infection b. Compromised host defence c. A&b.
762.
Communities with high annual population growth need education about: a. Caries b. Perio disease c. Dentofacial anomalies d. Dental fluorosis
763.
Buccal branch of facial is: a. Sensory b. Motor c. Mixed
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764.
Hairy tongue elongation of: a. Filliform b. Fungiform c. Circumvalate d. Foliate
765.
Syphilis first appear as: a. Multiple vesicles b. Ulcer c. Bulla. d. Chancre.*
766.
Plaque consists mainly of: a. Bacteria* b. Inorganic material c. Food
767.
Main reason for surgical pocket therapy: a. Expose the roots for scaling and root planning b. Remove supra-gingival calculus
768.
Most convenient and effective form of sterilization of dental instruments: a. Boiling b. Autoclave
769.
Dentinogenesis imperfect has all except: a. Easily fractured bone b. Easily fractured enamel c. Blue sclera d. Supernumerary teeth
770.
Odontogenic tumors: a. Arise from dental tissue b. Can turn malignant but rarely c. Have specific radiographic features
771.
13. Radiographic evaluation in extraction except: a. Relationship of associated vital structures. b. Root conviguration and surrounding bone condition. c. Access to the tooth, crown condition and tooth mobility. d. All of the above e. A & B
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772.
Tooth require RCT with bone resorption..terminate RCT at: a. Radiographic apex. b. 0.5-1 mm short of radiographic apex. c. 0.5-1 mm beyond radiographic apex.
773.
Composite resto followup after 2 years showed stained margin: a. Stress from polymerization shrinkage. b. Hydrolic destruction on bond.
774.
Muscle that form floor of the mouth: a. Mylohyoid.
775.
Floss used to: a. Remove interproximal plaque b. Remove overhangs c. Stimulate gingival
776.
18. Organism that intiates caries: S. mutans
777.
Gracey 13/14 a. Mesial posterior b. Distal posterior
778.
Incipient caries a. Surface zone is relatively unaffected b. The surface zone is the largest portion with the highest pore volume c. Tooth preparation and composite is the best treatment d. Pulpal reaction is not possible e. Carries progress in enamel faster than dentin
779.
Important factor in long term success of perio treatment: a. Skill of the operator b. Perio maintenance
780.
Which causes gingival enlargement: a. Cyclosporines
781.
Pedo use rubber dam for a. Improve visibility and access b. Lowers risk of swallowing c. Sterile field d. A &b
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782. Digital radiography is a technique that shows transition from white to black. It’s main advantage is the ability to manipulate the image by computer a. 1st T, 2nd F b. 1st F, 2nd T c. Both T d. Both F 783.
In recent years caries reduced in developed countries mainly due to: a. Water fluoridation b. Fluoride toothpaste c. Dental health education programs d. individualized oral hygiene care.
784.
Root most commonly pushed in max sinus a. Buccal of 7 b. Palatal of 6 c. Palatal of 7 d. Buccal of 6 e. Distal of 6 & 7
785.
Cementum is formed from a. Cementoblasts b. Fibroblasts c. Cementicles
786.
Teeth have convexity in buccal and lingual??
787.
Body defends itself by antibodies from a. B lymphocytes b. T lymphocytes
788.
Hyperventilation in dental office: a. Anxiety b. Low CO2 c. High CO2
789.
Osteomylitis more common a. Maxilla b. Mandible c. Zygoma d. Nasal septum e. Condyle
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790.
Avulsed teeth stored in a. Milk* b. Water
791.
The depth of cavity prep for composite in posterior: a. Limited to enamel b. 0.5 mm in dentin c. Depends on caries extension d. Depends on tooth discoloration e. 0.2 mm in dentin
792.
34. Fluoride reduces caries activity by: a. a. Reduces bacterial adhesion and carbohydrate storage (antimicrobial activity). b. Enhances the precipitation of insoluble fluoroapitite into the tooth structure. c. Fluoride enhances and remineralization of the noncavitated carious lesions. d. All of the above*. e. B & C
793. 30 year old patient all first molars carious and suspected pit and fissure areas of the second molars. Treatment plan a. Restore all first molars and observe second molars. b. Restore all first molars and topical fluoride on second molars. c. Restore all first molars and seal pits and fissures of second molars. d. Restore first and second molars with composite. e. Restore first and second molars with amalgam. 794.
Factors that make impaction surgery more difficult: a. Mesioangular position, large follicle, wide periodontal ligament and fused conical roots. b. Mesioangular position, large follicle, wide periodontal ligament and curved roots c. Distoangular position, large follicle, wide periodontal ligament and fused conical rooths d. Distoangular position, thin follicle, narrow periodontal ligament and divergent curved roots. e. Soft tissue impaction, separated from second molar and inferior alveolar nerve.
795. While performing cranial nerve examination you notice that the patient is unable to raise his eyebrows, hold eyelids closed, symmetrically smile or evert his lower lip..this may indicate: a. Trigeminal nerve problem. b. Facial nerve problem c. Oculomotor nerve problem. d. Trochlear nerve problem. e. All of the above.
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796.
Which scalpel below is universally used for oral surgical procedures? a. Number 2 blade. b. Number 6 blade. c. Number 10 blade. d. Number 12 blade. e. Number 15 blade.
797.
Moon face appearance is not present in: a. Le fort I. b. Le fort II c. Le fort III d. Zygomatic complex. e. Le fort II and Le fort III.
798.
Main disadvantage of chlorhexidine: a. Staining b. Burning sensation c. Altered taste.
799.
the radiograph shows condylar head orientation and facial symmetry a. submentovertex b. reverse town c. opg d. transorbital.
800.
The imaging showing disk position and morphology and TMJ bone: a. MRI b. CT c. ARTHROGRAPHY d. plain radiograph e. plain tomography.
801.
zinc is added to amalgam a. increase moisture sensitivity and cause expansion b. increase marginal integrity and longevity than zinc free amalgam c. a+ b.
802.
zinc phosphate cement and polycarboxylic cement both have a. zinc oxide particles b. silica quartz particles c. polyarcyilic acid d. phosphoric acid
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803. female patient with a swelling in left of mandible, slowly increasing , radio opaque surrounded by radiolucent band a. osteoma b. ossifying fibro c. cementoblastoma 804.
epithelial cells a. rest of malassez decrease with age b. rest of malassez increase with age c. hertwig sheath entirely disappear after dentinogenesis d. epithelial remnants could proliferate to periapical granuloma.
805.
enamel a. repair by ameloblasts b. permeability reduce with age c. permeability increase with age d. permeable to some ions.
806.
6 yrs old , lost lower rt and left 1st primary molar, space maintainer is a. lingual arch b. bilateral distal shoe c. bilateral band and loop
807.
pedo, has trauma in 11 , half an hour ago , with slight apical exposure , open apex, treatment is a. pulpotomy with formacresol b. apexification c. DPC d. Extraction
808.
which intracanal medicament causes protein coagulation: a. formacresol b. Naocl c. wad.... d. hydrogen peroxide
809.
which of following is not irrigant a. naocl b. rc prep c. hydrogen peroxide
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810.
GIC compared to composite: a. increase linear cof, of thermal expansion b. more wear resistant c. less soluble d. stiff e. polymerization shrinkage.
811. Student, came to clinic with severe pain, interdental papilla is inflamed,, student has exams, heavy smoker, poor nutrition. a. Gingivitis b. ANUG c. Periodontitis 812.
pt came with pain awaken her from sleep 20 a.m. and could'nt sleep later : a. reversible pulpitis b. rreversible pulpitis c. periodontal pain.
813. A pt with severe pain in lower left mandibular molar, examination positive pulp test , percussion test, no radiographic abnormality, rt side have recent fpd upper : a. chronic apical periodontits b. actue apical periodontitis c. apical abcess d. None of the above. 814.
Hypercementosis a. assoc. with paget disease b. difficult extraction c. bulbous roots d. easily extracted with elevator e. A & B.
815.
most common cyst a. apical radicular cyst * b. keratocyst cyst.
816.
pedo ( forgot the age ) , lost 75 , single missiting tooth should be treated by a. band and loop b. nance appliance c. crown and loop
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817.
Lower anterior teeth labial mucosa supplied by : a. mental nerve b. inferior dental nerve c. buccal nerve.
818.
upper teeth palatal mucosa supplied by : a. nasopalatine b. anterior palatine c. both d. post superior alveolar nerve.
819.
buccal branch of trigiminal is: a. sensory b. motor c. psychomotor d. sensory and motor.
820.
dentine permeability increases a. coronal less than root dentine b. permeablity increase toward DEJ c. permeablity increase toward BCj.
821.
biological width a. 1 mm b. 2mm c. 3mm d. 4mm.
822.
most common complete denture post insertion complaint after 24 hrs: a. rough b. overextention causing laceration. c. pt not used to new vertical dimension. which palatal form is more retentive and offers better stability to complete denture : a. v shaped b. wide palate c. u shaped d. flat palate.
823.
824.
vibrating line is a. joint between h. and s. palate b. joint btw movable and immovable parts of s. palate
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825.
which material has best biocompatibility intraorally : a. cobalt chromium b. titanium c. nickle chromium d. gold e. palladium.
826.
lingual plate : a. shallow sulcus b. mobile anterior teeth c. deep sulcus d. all of above
827.
indirect retainers mostly needed : a. class VI b. class I c. class III d. class III with modification.
828.
porcelain teeth in complete denture opposing natural teeth are not preferred due to : a. increase occ load on natural teeth b. wear of natural teeth* c. Clicking during mastication.
829.
which of following resto more likely to cause wear to opposing : a. composite b. gold c. porcelain d. amalgam.
830.
provisional cement main advantage : a. prevent leakage and caries b. prevent dislodgement of the restoration.
831.
in restoring lost tooth, which is least important : a. esthetic b. pt demand c. function d. arch integrity and Occlusal stability.
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832.
Enamel tufts are a. extensions of odontoblasts in the DEJ b. enamel rods change their direction. c. Enamel rods get crowded.
833.
In clinical research : a. blind or double blind b. needs control c. includes intervention d. offers no benefits to subject at risk.
834.
one of the main cause of malocclusion: a. premature loss of primary teeth.
835.
to disinfect gutta percha: a. Chemical agents b. ..
836.
SSC early stage looks like: a. Vesicle b. Red plaque
837.
file #40 means: a. 0.40 is the diameter at d1* b. 0.40 is from d1 to d16
838.
The difference between cellulitis and abscess: a. Celliltis acute stage with difuse selling no pus
839.
cause of radicular cyst a. non vital tooth b. vital tooth
840. -
The periodontal tissues comprise which of the following tissues: Gingiva and the PDL. Gingival, PDL, and alveolar bone. Gingival, PDL, alveolar bone, and cementum. Gingival, PDL, alveolar bone, cementum, and enamel.
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841. -
The following chemically bond to the tooth: Composite resin. Dental sealants. Glass ionomer cement. All of the above.
842. 3. In countries with higher annual population growth rates, the need for community based preventive programs would be greater for: - Dental caries. - Periodontal disease - Dentofacial anomalies - Dental floozies.
843. -
4. The following medical conditions may precipitate a syncope: Hypoglycemia. Mild hyperglycemia. Anti hypertensive drugs with ganglionic blocking agent. Antidepressant therapy. All of the above.
844. Orthognathic ridge relationship (class II) presents several problems which should be taken into consideration when constructing complete denture prosthesis. These include all EXCEPT: - Require minimum interocclusal distance. - Have a great range of jaw movement. - Require careful occlusion, usually cuspless teeth are indicated. 845. After insertion of complete denture, Pt came complaining from pain in TMJ and tenderness of muscle with difficulty in swallowing, this could be due to: - High vertical dimension. - Low vertical dimension. - Thick denture base. - Over extended denture base.
846. Pt. Presented after insertion of complete denture complaining of dysphagia and ulcers what is the cause of dysphagia? - over extended. - over post dammed. - under extended - under post dammed
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847. -
Pt with denture has swallowing problem and sore throat. The problem is: Posterior over extension at distal palatal end Over extension of lingual. Over extension of hamular notch.
848. -
Nausea is a complaint that a new denture wearer might encounter. It may result from: . Thick posterior border. Denture under extended. Denture slightly over extended. A & b are correct.
849. -
Planning centric occlusion for complete denture, it is advisable to have: 1-2 mm of vertical and horizontal overlap of upper and lower anterior teeth with no contact. Definite tooth contact of upper and lower anterior teeth in order to facilitate the use of anterior teeth for incision.
850.
Compomer restorative materials are: - Glass ionomer with polymer components - Resin systems with fluoride containing glasses. - Composite resin for cervical restorations only.
850.
The posterior extension of max complete denture can be detected by the followings EXCEPT: - Hamular notch. - Fovea palatine. - Vibrating line. - none of the above
851. -
The distal palatal termination of the maxillary complete denture base is dictated by the: Tuberosity. Fovea palatine. Maxillary tori. Vibrating line. Posterior palatal seal.
852. -
All are participating in the determination of the posterior extension of the maxillary denture (posterior palatal extension) EXCEPT: hamular notch fovae palatine vibrating line retromolar (pads) areas.
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853. -
Most common complete denture post insertion complaint after 24 hrs: Rough Overextension causing laceration Pt not used to new vertical dimension
854. -
Which palatal form is more retentive and offers better stability to complete denture: V shaped Wide palate U shaped Flat palate
855. -
Vibrating line is: Joint between h. And s. Palate Joint btw movable and immovable parts of s. Palate
856. -
Vibrating line: Between hard & soft palate. Between mobile and non mobile soft tissue.
857. -
All relate to retention of maxillary complete denture EXCEPT: Tongue movement. Type of saliva.
858. -
Best instrument to locate vibrating line with it is T burnisher.
859. -
We can use to palatal posterior seal: Le jao carver. Kingsley scraper.
860. To a great extent, the forces occurring through a removable partial denture can be widely distributed and minimized by the following methods: - Proper location of the occlusal rests. - Selection of lingual bar major connector - Developing balanced occlusion. - All of the above.
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861. -
The most frequent cause of failure of a cast crown restoration is: Failure to extend the crown preparation adequately into the gingival sulcus. Lack of attention in carving occlusal anatomy of the tooth. Lack of attention to tooth shape, position, and contacts Lack of prominent cusps, deep sulcus, and marginal ridges.
862. An examination of the edentulous mouth of an aged Pt who has wore maxillary complete dentures for many years against six mandibular teeth would probably show: - Cystic degeneration of the foramina of the anterior palatine nerve. - Loss of osseous structure in the anterior maxillary arch. - Flabby ridge tissue in the posterior maxillary arch. - Insufficient inter occlusal distance.
863. -
Dental carries is an endemic disease "means that the disease is: Occurs clearly in excess of normal expectancy. Is habitually present in human population. Affect large number of countries simultaneously. Exhibit a seasonal pattern.
864. -
Clinical failure of the amalgam restoration usually occurs from: Improper cavity preparation Faulty manipulation. Both of the above None of the above
865. -
Pt on treatment with steroids are placed on antibiotic after oral surgical procedure because: The Pt is more susceptible to infection. Antibiotics are synergistic to steroids. Antibiotic inhibits kerksheimer reaction. Antibiotic protect the Pt from steroid depletion.
866.
Which of the following may cause gingival enlargement - Phenyntoin (Dilantin). - Cyclosporine - Nifedipine ( a calcium channel blocker) - Aspirin - None of the above
867. -
Reliability of the measurements reflects that property of the measurements which:: Measures what is intended to be measured. Produces repeatedly the same results under a variety of conditions. Detects reasonably small shifts, I either direction, in group condition. All of the above.
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868. -
The post operative complication after the removal of impacted third molar is: Secondary hemorrhage. Swelling. Pain. Alveolar osteitis. All of the above.
869. -
The posterior seal in the upper complete denture serves the following functions: It reduces Pt discomfort when contact occurs between the dorsum of the tongue and the posterior end of the denture base. Retention of the maxillary denture. It compensate for dimensional changes which occur in the acrylic denture base during processing. A& b are correct.
870. -
If the oral tissues are inflamed and traumatized, impression for making a new denture: Should be started immediately in order to prevent further deterioration. The occlusion of the existing denture is adjusted, and tissue condition material is applied, and periodically replaced until the tissue are recovered, then making impression take place. The Pt is cautioned to remove the denture out at night. A & B are correct. All of the above are correct.
871. -
Balanced occlusion refers to: The type of occlusion which allows simultaneous contact of the teeth in centric occlusion only. The type of occlusion which allows simultaneous contact of the teeth in centric and eccentric jaw positions. A type of occlusion which is similar to the occlusion of the natural teeth.
872. -
Polyether impression materials: Are less stable dimensionally than poly sulfide rubber. Are less stiff than poly sulfide rubber. Can absorb water and swell if stored in water.
873. -
The indication for the use of lingual plate major connector include: For the purpose of retention. When the lingual frenum is high or when there is a shallow lingual sulcus. To prevent the movement of mandibular anterior teeth. All of the above.
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871. -
An anterior fixed partial denture is contraindicated when: Abutment teeth are not carious. An abutment tooth is inclined 15 degrees but otherwise sound. There is considerable resorption of the residual ridges. Crown of the abutment teeth are extremely long owing to gingival recession.
872. -
In registering the vertical dimension of occlusion for the edentulous patient. The physiological rest dimension: Equals the vertical dimension of occlusion. May be exceeded if the appearance of the patient is enhanced. Is of little importance as it is subject to variations. Must always be greater than vertical dimension of occlusion.
873. Three weeks after delivery of a unilateral distal extension mandibular removable partial denture, a Pt complained of a sensitive abutment tooth, clinical examination reveals sensitivity to percussion of the tooth, the most likely cause is: - Defective occlusion. - Exposed dentine at the bottom of the occlusal rest seats. - Galvanic action between the framework and an amalgam restoration in the abutment tooth. 874. Recent years, there has been an evidence that the prevalence and intensity of the caries attack has been diminishing in the more economically developed countries, mainly because of the wide spread use of: - Artificial water fluoridation. - Fluoride toothpaste - Dental health education programs - A & c. 875. -
Cost effective method to prevent dental caries water fluoridation. flouridated tooth paste
876. 877. -
In recent years caries reduced in developed countries mainly due to: Water fluoridation. Fluoride toothpaste Dental health education programs. D. Individualized oral hygiene care.
878. -
Actual destruction of micro-organisms in the root canal is attributed mainly to: Proper antibiotic thereby. Effective use of medicament. Mechanical preparation and irrigation of the canal. None of the above.
The effects of natural fluoride versus added fluoride in reducing dental caries as it relates to the concentration are: Greater Less The same
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879. A tooth very painful to percussion, doesn’t respond to heat, cold or the electric pulp tester. The most probable diagnosis is: - Reversible pulpitis. - Irreversible pulpitis. - Acute apical periodontitis. 880. During post insertion examination of a 3 unit ceramometal fixed partial denture. One of the retainers showed chipping of porcelain at the ceramometal junction. In order to avoid the problem the dentist must: - Reduce the metal to 0.3 mm. - Have uniform porcelain thickness. - Have occlusion on metal. - Keep porcelain metal junction away from centric contacts.
881. -
What is a Pier abutment? Single tooth holding one pontic. A tooth that supports a removable partial denture. All of the above. None of the above.
882. a. b. c. d. e.
Which are the ways in which the proximal contacts can be checked? Use a pencil. Use a shim stock. (like articulator paper but thinner) Use a silicone checker. Use a dental floss. Only b & d.
883. -
The incisal reduction for a metal ceramic restoration should be: 1.5 mm. 2 mm. 3 mm. 4 mm.
884. -
The occlusal reduction for an all metal veneer crown should: Be as flat as possible to enable an easy fabrication of occlusion anatomy. Follow the occlusal morphology with a clearance rating from 1 to 1.5 mm with the opposing dentition. Follow the occlusal morphology with a clearance of no more than 0.5 mm with the opposing dentition. Be the last step in the tooth preparation.
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885.
Gingival retraction is done: a. To temporarily expose the finish margin of a preparation. b. To accurately record the finish margin of a portion of uncut tooth surface apical to c. the margin in the final impression. d. Even in the presence of a gingival inflammation. e. By various methods but the most common one is the use of retraction cord. f. A and b. g. A, b and c. h. A, b and d.
886. -
Regarding tissue retraction around tooth: Short duration of retraction of gingival margin during preparation of finishing line. (8 min) Retraction of gingival margin during taking final impression to take all details of unprepared finish line. Usually retracted severely inflamed gingival margin. Retraction of gingival margin can be done by many ways one of them is retraction cord. A, b and c. B, c and d. A and d.
887. -
Loose enamel rods at the gingival floor of a class II amalgam cavity should be removed using a: Straight chisel. Hatchet. Gingival curetla. Gingival marginal trimmer.
888. -
Removal of Undermined Enamel in Class II cavity is done by : Chisel. Angle former Excavator
889. -
To plan the line-angles in the proximal cavity in a class II you use: Straight chisel Biangled chisel. Enamel hatchet
890. Hand instrument which we used to make internal angles retentive grooves and preparation of cavity walls in the cavity is: - Angle former. - Chisel - File - Enamel hatched
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891. -
What is the cavo-surface angle of prep for amalgam restoration: 30 degree 60 degree 90 degree 130 degree.
892. -
To provide maximum strength of amalgam restoration the cavo-surface angles should: Approach 75 with outer surface. Approach 90 with outer surface. Be supported by sound dentine. Be located in area free of occlusal stress. o 1+3 and 4. o 1+3. o 2+3+4. o 3+4.
893. Which of the following burs would you prefer to use preparing a slot for the relation of an extensive amalgam restoration on maxillary molar: - Number 5 round bur. - Number 56 fissure bur. - Number 556 fissure bur. - Number 35 cone bur.
894. Which of the following materials has been shown to simulate reparative dentine formation most effectively when applied to the pulpal wall of a very deep cavity: - Copalite varnish. - Calcium hydroxide preparation. - Zinc phosphate cement. - Anhydrous class inomer cement.
895. -
Calcium hydroxide is best pulp capping material because: It has best seal over pulp. It is alkaline + less irritating to pulp. It induces reparation dentine formation.
896.
A glossy finish is best retained on a: a. Microfilled composite resin restoration. b. Macrofilled resin restoration. c. Hybrid composite resin restoration. d. Fiber reinforced composite resin restoration
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897.
Sealer is used in RCT to: a. Fill in voids. b. Increase strength of RC filling. c. Disinfect the canal.
898. Child patient presented with swelling in the buccal and palatal maxillary anterior area tow days ago, the pathology of the lesion there is a giant cell, what is the diagnosis: a. Giant granuloma. b. Hemangioma. 899.
Child with anodontia and loss of body hair, the diagnosis is: a. Down's syndrome. b. Ectodermal dysplasia. c. Fructose ….. d. Diabetic ….
900.
Cavity etching before applying GIC is: a. Polyacrylic acid 10 seconds. b. Polyacrylic acid 60 seconds. c. Phosphoric acid 10 seconds. d. Phosphoric acid 60 seconds.
901.
surgery for ridges aim to: a. Vertical dimension. b. Speech. c. Modify ridge for stability.
902.
Patient with warfarin treatment and you want to do surgery, when you can do: a. When PTT is 1 – 1.5 INR on the same day. b. When PTT is 2 – 2.5 INR on the same day. c. 1.5 INR on the same day. –When PT is 1 d. When PT is 2 – 2.5 INR on the same day.
903. patient with pain on the upper right area, and the patient can not tell the tooth least reliable way to do test pulp: causes the pain, what is the a. Cold test. b. Hot test. c. Electric test. d. Stimulation the dentine. 904.
Skeletal face is from: a. Neural. b. Para….
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905.
The most accurate impression material for making the impression of an onlay cavity: a. Impression compound. b. Condensation type silicone. c. Polyvinyl siloxane *** d. Polysulfide.
906. One of the main features of acute herpetic gingivostomatitis is the ulcers are confined to the attached gingival and hard palate: a. True. b. False. *** 907. A primary infection is more severe, with associated lymphadenopathy, fever and malaise. Recurrent infections occur at various intervals (ranging from monthly in some individuals to seldom in others) and affect the non-movable intraoral tissues (the hard palate and attached gingival ) 908.
The functions of cement bases are: a. To act alike a barrier against acids or thermal shocks. b. The minimal thickness, which is required, is 0.5 mm of base. c. A and b. d. None of the above. *** e. 1 only. f. 2 only
909.
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