DHA Dental questions

January 12, 2017 | Author: Khalid Iqbal | Category: N/A
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DHA$%$2014$Revision Important Notices This Paper contains all the possible questions that will or most like come on the Dubai Health Authority 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! !

Authors Orginal!documents!were!by!Dr.!Maestro!Dr.!Somod!([email protected]) Edited!by!Dr.!Amar!,!Dr.!Robo,!Dr.!Hala,!Dr.!Sallaf,!Dr.!Tammam! Finilaized!by!Dr.!Abdullah!! ReEPublished!!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

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1. The periodontal tissue comprises which of the following tissues: a. b. c. d.

Gingiva and PDL. Gingival, PDL and alveolar bone. Gingival, PDL, alveolar bone and cementum. Gingival, PDL, alveolar bone, cementum and enamel.

2. The periodontium comprises which of the following tissues: A. Gingiva and PDL. B. Gingival, PDL and alveolar bone. C. Gingival, PDL, alveolar bone and cementum. D. Gingival, PDL, alveolar bone, cementum and enamel.

3. The following chemically bonds to the tooth: a. b. c. d.

Composite resin. Dental sealants. Glass ionomer cement. All of the above. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!

!

4. In countries with higher annual population growth rates, the need for community-based preventive programs would be greater for:

a. b. c. d.

Dental caries. Periodontal disease. Dentofacial anomalies. Dental fluorosis.

a. b. c. d. e.

Hypoglycemia. Mild hyperglycemia. Anti hypertensive drugs with ganglionic blocking agent. Anti depressant therapy. All of the above.

5. The following medical conditions may precipitate

6.

a syncope:

What’s the first sign of Syncope:! a) Paleness.! b) Nose bleeding (epistaxis ).! c) Miosis.

!

7. Most frequent cause of fainting in dental office: a. Vaso-vagal shock. b. Diabetes. c. Fear.

8. Loss of consciousness, most frequent cause: a. Syncope. ! b. CO2 increase.

9. Orthognathic ridge relationship ( class II ) presents several problems which should be taken into consideration when constructing complete denture prosthesis. These include all except: a. Require minimum interocclusal distance.

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b. Have a great range of jaw movement. c. Require careful occlusion, usually cuspless teeth are indicated.

* Orthognathic!Ridge!Relationship:!! Class!II!or!retrognathic!!:!!is!usually!difficult!and!needs!a!large!interocclusal!distance.!! !

Class!III!or!prognathic!!:!!is!usually!easier!and!requires!a!minimum!of!interocclusal!distance.! ! ! !

10. Class III jaw relation in edentulous Pt.: a. b. c. d.

It will affect size of maxillary teeth. Affect retention of lower denture. Affect esthetic and arrangement of maxillary denture. All of the above.

11. Planning centric occlusion for complete denture, it is advisable to have: a. 1-2 mm of vertical and horizontal overlaps of upper and lower anterior teeth with no contact. b. Definite tooth contact of upper and lower anterior teeth in order to facilitate the use of anterior teeth for incision.

12. The posterior extension of maxillary complete denture can be detected by the followings except: a. Hamular notch. b. Fovea palatine. c. Vibrating line. !‫ﺎ‬#‫ﺶ &ﺧﺘ‬#‫ﻟﻜﻦ ﻟﻮ ﻣﺠﺎﺑﻠ‬0 ‫ﺪ‬2‫ﺴﺘﺨﺪﻣﻮ ﻓﻰ &ﻟﺘﺤﺪ‬#‫ ﺑ‬8&!‫ﺎ‬#‫ &ﺧﺘ‬9‫< &ﻟﺜﻼ‬0‫ﻌﻨﻰ ﻣﻔﺮ‬2 * !‫ﻟﺘﺤﺪ*ﺪ *ﺒﻘﻰ &ﻨﺨﺘﺎ‬. ‫ ﻓﻰ‬0‫ﻟﺘﻰ ﻻ ﺗﺴﺘﺨﺪ‬. Retromolar (pad) areas !" Non of the above Fovea palatine.

* All are participating in the determination of the posterior extension of the maxillary denture except: A. Vibrating line. B. Hamular notch. C. Fovae palatine. D. Retromolar (pad) areas. *** 13. The distal palatal termination of the maxillary complete denture base is dictated by the: a. b. c. d. e.

Tuberosity. Fovea palatine. Maxillary tori. Vibrating line. Posterior palatal seal.

14. Vibrating line: a. Between hard & soft palates. b. Between mobile and non mobile soft tissues.

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15.

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.!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!

16.

Pt. Presented after insertion of complete denture complaining of dysphagia and ulcers what is the cause of dysphagia? a- over extended. b- over post dammed. c- under extended. d- under post dammed.

17. Pt. with denture has swallowing problem and sore throat. The problem is: ‫ﺣﻠﻖ!ﻣﻠﺘ"ﺐ‬

a. Posterior over extension at distal palatal end. b. Over extension of lingual. c. Over extension of hamular notch.

18. Nausea is a complaint that a new denture wearer might encounter. It may result from: !"‫ﺎ! '"ﺷﻤﺌﺰ‬#‫ﻏﺜ‬ a. b. c. d.

Thick posterior border. Denture under extended. Denture slightly over extended. a & b are correct.

!

. !‫ﺎ‬#‫ﺳﺒﺎ( 'ﻟﻐﺜ‬+ ‫ﻰ‬- .'/‫ﺎ‬#‫ ﺧ‬1‫ ﻷ! 'ﻟﺜﻼ‬4/‫ﻨﺨﺘﺎ‬- .'/‫ﺎ‬#‫ ﺧ‬1‫ﻀﻢ 'ﻟﺜﻼ‬: /‫ﺎ‬#‫* ﻟﻮ ﺟﺎ( 'ﺧﺘ‬

! ! !

19. After insertion of complete denture, Pt. came complaining from pain in TMJ and tenderness of muscles with difficulty in swallowing, this could be due to: a. b. c. d. 20.

High vertical dimension. Low vertical dimension. Thick denture base. Over extended denture base.

Most common complete denture post insertion complaint after 24 hrs.: a. Rough. b. Overextension causing laceration. c. Pt. not to use new vertical dimension.!

21.

Which palatal form is more retentive and offers better stability to complete denture: a. V shaped. b. Wide palate.

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c. U shaped. d. Flat palate. !

22. All relate to retention of maxillary complete denture except: a. Tongue movement. b. Type of saliva.

23. Best instrument A. T-burnisher. B. Mirror. C. Carver. D. Non of the above.

to locate vibrating line, it is: !

!

24. We can use for palatal posterior seal: 1. Le jao carver. 2. Kingsley scraper.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

25. The most frequent cause of failure of a cast crown restoration is: A. Failure to extend the crown preparation adequately into the gingival sulcus. B. Lack of attention in carving occlusal anatomy of the tooth. C. Lack of attention to tooth shape, position, and contacts. D. Lack of prominent cusps, deep sulcus, and marginal ridges.

26. 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: a. b. c. d.

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 interocclusal distance.

27. Dental caries is an endemic disease, means that the disease is: a. b. c. d.

‫ﻣﺮ!!ﻣﺴﺘﻮ"ﻦ‬

Occurs clearly in excess of normal expectancy. Is habitually present in human population. Affect large number of countries simultaneously. Exhibit a seasonal pattern.

28. Pt. on treatment with steroids are placed on antibiotic after oral surgical procedure because: a. The Pt. is more susceptible to infection. ! b. Antibiotics are synergistic to steroids. c. Antibiotics inhibit herksheimer reaction. d. Antibiotics protect the Pt. from steroid depletion.

29. The post operative complication after the removal of impacted third molar is: a. b. c. d. e.

Secondary hemorrhage. Swelling. Pain. Alveolar osteitis. All of the above.

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30. If the oral tissues are inflamed and traumatized, impression for making a new denture: a. Should be started immediately in order to prevent further deterioration. b. The occlusion of the existing denture is adjusted, and tissue condition material is applied and periodically replaced until the tissues are recovered then making impression takes place. c. The Pt. is cautioned to remove the denture out at night. d. a & b are correct. e. All of the above are correct.

31. Polyether impression materials: a. Are less stable dimensionally than polysulfide rubber. b. Are less stiff than polysulfide rubber. c. Can absorb water and swell if stored in water.

32. The indication for the use of lingual plate major!connector includes: a. b. c. d.

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.

33.

Lingual plate: a. Shallow sulcus. b. Mobile anterior teeth. c. Deep sulcus. d. a+b e. All of above. 34.

Lingual bar contraindication except : a- Shallow lingual sulcus. b- Long lingual frenum. c- Too crowded lower anterior teeth. d- Mobile anterior teeth.

35.

Lingual bar indication: a- short lingual frenum. b- deep lingual sulcus. c- too crowded lower anterior teeth. d- all of the above.

36. In class I partially edentulous lower arch, selection of major connector depends on: a. b. c. d.

Height of lingual attachment. Mandibular tori. Periodontal condition of remaining teeth. All of the above.

37. An anterior fixed partial denture is contraindicated when: a. b. c. d.

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.

38. In registering the vertical dimension of occlusion for the edentulous patient. The physiological rest dimension: 6|Page

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a. b. c. d.

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.

39. 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: a. Defective occlusion. b. Exposed dentine at the bottom of the occlusal rest seats. c. Galvanic action !between the framework and an amalgam restoration in the abutment!tooth.

40. Pt. with lower complete denture, intraoral examination shows slightly elevated lesion with confirmed border, Pt. history of ill fitting denture. It is treated by: a. Immediate surgical removal. b. Instruct Pt. not to use denture for 3 weeks then follow up. c. Reassure Pt. and no need for treatment.

41. Examination of residual ridge for edentulous Pt. before construction of denture determines stability, support and retention related to the ridge: a. True. b. False.

42. Upon examination of alveolar ridge of elderly Pt. for construction of lower denture, easily displaceable tissue is seen in the crest of ridge. Management: a. Minor surgery is needed. b. Inform the pt. that retention of denture will decrease. c. Special impression technique is required.

43. In recording man-max relation, the best material used without producing pressure is: a. Wax. b. Compound. c. Bite registration paste.

* Bite registration paste as zinc oxide euginol paste.

44. The posterior seal in the upper complete denture serves the following functions: a. It reduces pt. 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 acrylic denture base during processing. d. b & c are correct.

45.

Function of post dam: ( PPS ) !

a. Prevents tongue from palate touch increase comfort.! b. increases !retention.!

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c. to compensate acrylic dimension.! d. all.

!

! * posterior seal = posterior palatal seal = post dam = pps. 46. In recording jaw relation, best to use: a. Occlusal rim with record base. b. Occlusal rim with base wax. c. Occlusal rim with nacial frame.

47.

During 3/4 crown preparation on premolar, bur used to add retentive grooves is:

a. Radial fissure. b. Tapered fissure.

!

48. The goal of construction of occlusion rims is: 1. To obtain the occlusal plane, vertical dimension, tentative centric relation, face bow transfer & placement of the teeth. 2. To obtain the protrusive condylar guidance. 3. To obtain the lateral condylar posts and incisal guide. 4. None.

49. A temporary form representing the base of a denture which is used for making maxillo-manibular jaw relative record for arranging teeth or for trail insertion in the mouth is: 1. 2. 3. 4.

Bite rims. Custom tray. Set up. Base plate.

50. To recheck centric relation in complete denture: a. b. c. d.

Ask Pt. to open and close. Ask Pt. to place tip of tongue in posterior area and close. To wet his lip and tongue. All of the above.

51. Recent years, there has been an evidence that the prevalence and intensity of the caries attack has been diminished in the more economically developed countries, mainly because of the wide spread use of: a. b. c. d.

Artificial water fluoridation. Fluoride toothpaste. Dental health education programs. a & c.

52. Cost effective method a. water fluoridation. b. flouridated tooth paste.!

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to prevent dental caries:

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53. In recent years, caries reduced in developed A. Water fluoridation. B. Fluoride toothpaste. C. Dental health education programs. D. Individualized oral hygiene care. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 54.

countries mainly due to:

In terms of caries prevention, the most effective!and most cost effective method is:

a. Community based programs. b. Individually based programs.

55. In terms of caries prevention, the most effective!and most cost effective method is: a. Community based programs. b. Private based programs.

56. The effects of natural fluoride versus added fluoride in reducing dental caries as it relates to the concentration are: a. Greater. b. Less. c. The same.

57. When does child should be first exposed for using tooth brush: a. b. c. d.

As eruption of first tooth. One year old. Two years old. Primary school year.

58. When a child must first exposed to the use of the tooth brush: a- !Of age of 2 years. b- !Of age of 4 years. c- !Immediately after eruption of first tooth. 59. When a child must first exposed to the use of the tooth brush: a- !Of age of 2 years. b- !Of age of 4 years. c- !After eruption of primary teeth. 60. When tooth paste is used, the child is advised:!

a- not swallow. ! b- swallow a small amount.! c- do not rinse.! d- none.

61. Fluoridated toothpaste for 3 years child is: a. Recommended. b.Not recommended. c. Common. d.Non of above.

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62. Fluoride which we use in the clinic doesn’t cause fluorosis because: a. b. c. d.

It's not the same fluoride that cause fluorosis. Teeth already calcified. Calcium in the mouth counter. Saliva wasn’t out.

63. Mentally ill child, the best way to apply fluoride: a. Acidulated phosphate fluoride. b.Natural sodium fluoride. c. Fluoride varnish. d. Stannous fluoride.

!

!

64. Fluoride decreases dental caries by remineralization of enamel: a. True. b. False.

65. Person drinking fluoridated water, using toothbrush with fluoride, rinsing with fluoride mouthwash, then no need to put pit and fissure sealants in his permanent teeth: a. True. b. False.

66.

Dental fluorosis: a. b. c. d. e.

Is indicative of systemic fluorosis. Can be contracted at any age. Becomes less noticeable with age. Is reversible. Is largely preventable.

67. Fluorides are most anticaries effective when: a. b. c. d. e.

Incorporated in the tooth enamel. Present in the blood stream. Present in the plaque and tissue fluids bathing the newly erupted tooth. Present in the ingested foods. Present on the intraoral mucous membranes.

68. Fluoride is not taken up systemically from which of the following sources: a. b. c. d. 69.

Water. Food. Dentifrices. Topical applications of fluoride.

Fluoride reduces caries activity by: a. Reduces bacterial adhesion and carbohydrate storage (antimicrobial activity). b. Enhances the precipitation of insoluble fluoroapitite into the tooth structure. c. Fluoride enhances remineralization of the noncavitated carious lesions. d. All of the above. e. b & c.

70.

Communities with high annual population growth need education about: a. Caries.

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b. Perio disease. c. Dentofacial anomalies. d. Dental fluorosis. 71.

Optima water fluoridation: a) 1-1.5 mg\liter. b) 0.2-0.5 mg\liter. C) 2-3 mg\liter.

72.

Optima water fluoridation: a) 1 mg\liter. b) 0.2-0.5 mg\liter. C) 2-3 mg\liter. d) 0.5 mg\liter.

73.

Optima!water fluoridation: a) 0.5 – 0.8 mg\liter. b) 0.2-0.5 mg\liter. C) 2-3 mg\liter. d) 1-5 mg\liter.

74.

Acidulated phosphate fluoride: a- !1% fluoride ions. b- !1.23%. c- !2%. d- !2.23%. f- !3%.

75. Actual destruction of micro-organisms in the root canal is attributed mainly to: ! a. b. c. d.

Proper antibiotic thereby. Effective use of medicament. Mechanical preparation and irrigation of the canal. None of the above.!

!

76. A tooth very painful to percussion, doesn’t respond to heat, cold or the electric pulp tester. The most probable diagnosis is: a. Reversible pulpitis. b. Irreversible pulpitis. c. Acute apical periodontitis. !

77. 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: a. Reduce the metal to 0.3 mm. b. Have uniform porcelain thickness. c. Have occlusion on metal. d. Keep porcelain metal junction away from centric contacts.

78. What is a pier abutment? a. Single tooth holding one pontic. b. A tooth that supports a removable partial denture.

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c. All of the above. d. None of the above.

79. Which are the ways in which the proximal contacts can be checked? a. b. c. d. e.

Use a pencil. Use a shim stock. !! Use a silicone checker. Use a dental floss. Only b & d.

80. The incisal reduction for a metal ceramic restoration should be: a. b. c. d.

1.5 mm. 2 mm. 3 mm. 4 mm.

81. The occlusal reduction for an all metal veneer crown should: a. b. c. d.

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.

82. 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 the margin in the final impression. c. Even in the presence of a gingival inflammation. d. By various methods but the most common one is the use of retraction cord. e. a and b. f. a, b and c. g. a, b and d.

83.

Regarding tissue retraction around tooth:

a. Short duration of retraction of gingival margin during preparation of finishing line. b. Retraction of gingival margin during taking final impression to take all details of unprepared finish line. c. Usually retracted severely inflamed gingival margin. d. Retraction of gingival margin can be done by many ways one of them is retraction cord. e. a, b and c. f. b, c and d. g. a and d. 84. Loose enamel rods at the gingival floor of a class II amalgam cavity should be removed using: a. Straight chisel. b. Hatchet. c. Gingival curette. d. Gingival marginal trimmer.

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85. Removal of undermined enamel in class II cavity is done by : A) Chisel. B) Angle former. C) Excavator.

86. Hand instrument which we used to make internal angles retentive grooves and preparation of cavity walls in the cavity is: a. b. c. d.

Angle former. Chisel. File. Enamel hatched.

87. What is the cavo-surface angle of preparation for amalgam restoration: a. b. c. d.

30 degree. 60 degree. 90 degree. 130 degree.

88. To provide maximum strength of amalgam restoration the cavo-surface angles should: 1. Approach 75 with outer surface. 2. Approach 90 with outer surface. 3. 4. a) b) c) d)

Be supported by sound dentine. Be located in area free of occlusal stress. 1+3+4. 1+3. 2+3+4. 3+4.

89. 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: a. b. c. d.

Copalite varnish. Calcium hydroxide preparation. Zinc phosphate cement. Anhydrous glass inomer cement.

90. Calcium hydroxide is the best pulp capping material because: 1. It has best seal over pulp. 2. It is alkaline + less irritating to pulp. 3. It induces reparation dentine formation.

91. The most accurate impression material for making the impression of an onlay cavity: a. b. c. d.

Impression compound. Condensation type silicone. Polyvinyl siloxane. Polysulfide.

92.

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Patient came to dentist after previous stressful procedure complaining All Rights Reserved 2013| OziDent.com

of burning & discomfort of his lip on examination u found lesions on the palate, diagnosis is: a- contact dermatitis.

!

b- allergy. c- aphthous ulcer. d- herpes simplex. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

93. :

‫ﻟﻌﺎ!!&ﻟﻤﺎﺿﻲ‬%!!"‫ﻛﺮ!"!!!"ﻷﻋﺮ"!!ﻧﻔﺴ"ﺎ!ﺗﻜﺮ‬#!‫ﺧﺮ!ﻣﺸﺎﺑ!!ﻣﻊ‬#!!"‫ﺳﺆ‬

a. aphthous ulcer. b.recurrent herpes ulcer. c. allergic stomatitis.

94. Aphthous ulcer, compared with herbes ulcer is: a. b. c. d.

More characteristic in histology. Leaves scar. Less response to stress. Occurs in lining mucosa.

95. Syphilis first appearance: a. b. c. d.

Multiple vesicle. Erythematous reaction. Ulcer. Bullae.

!

96.

Child with vesicles on the hard palate with history of malaise for 3 days what is the possible diagnosis: 1/ herpes simplex. 2/ erythema multiform.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

97. a. b. c. d. !

Which virus is present in the patient's mouth all his life?

Herpes simplex. Herpes zoster. Varecilla virus. None of the above.

* Virus is present in the patient's body all his life is infeluenza virus that caused by herpes simples virus. 98. Clinical failure of the amalgam restoration usually occurs from: a. b. c. d.

Improper cavity preparation. Faulty manipulation. Both of the above. None of the above.

99. It has been proven that amalgam restoration has the following characteristics: a. Microleakage decrease with aging of the amalgam restoration. b. It is the least techniques sensitive of all current direct restorations. c. High dimensional changes.

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d. e. f. g.

a, b and c. a and c. a and b. b only.

100. a. b. c. d. e.

When polishing the amalgam restoration:

Avoid heat generation by using wet polishing paste. Wait 24 hours. a and b. b only. a only.

101.

Maximum time elapsed before condensation of amalgam after titration:

a. 1minute. b. 3minutes. c. 9minutes.

102. a. b. c. d.

1 min. 3 min. 5 min. 10 min.

After amalgam titrations, the mix should be placed within!:

103. MOD amalgam restoration with deep mesial box, Pt. come with pain related to it after 1 month due to: a. b. c. d.

Pulp involvement. Supraocclusion. Upon contact. Gingival recession.

a. b. c. d.

1 - 1.5 mm. 1.5 - 2 mm. 2 - 3 mm. 3 - 5 mm.

104. Reduction in amalgam restoration should be:

105. 1. 2. 3. 4.

106. a. b. c. d. e. f. g.

Depth of amalgam restoration should be:

1 – 1.5 mm. 1.5 – 2 mm. 2 – 3 mm. 3 – 5 mm.

Silicate cement:

First tooth colored restoration. It can be used as permanent filling. It contains 15 % fluoride. a, b and c. a and b. a and c. A only.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

107.

Treatment of gingival trauma from faulty oral hygiene is mainly:

a. To advice the patient to change their faulty habits immediately.

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b. Reassure the patient that it will disappear by it self. c. To buy a new brush. ! !

108. Which of the following statement is true regarding dental calculus: a. b. c. d. e. f.

It is composed entirely of inorganic material. It is dens in nature and has a rough surface. It is mineralized dental plaque. All of the above. b & c only. None of the above.

* entirely = completely ‫ﻛﻠ"ﺎ‬ Dental calculus consists not completely of inorganic materials as it consists of inorganic & organic materials. 109. Overhanging restoration margins should be removed because: a. It provides!ideal location for plaque accumulation.!! b. It tears the gingival fibers!leading to attachment loss. c. Stimulate inflammatory reaction directly. d. Its removal permits more effective plaque control. e. a !&!d.

110. a. b. c. d.

Main use of dental floss:

Remove calculus. Remove overhang. Remove bacterial plaque. Remove food debris.

111.

What is the benefit of rinsing the mouth with water:

A) Plaque removal. B) calculus removal. C) washing the food debris.

112. What is the benefit of rinsing the mouth with water: a. Plaque removal. b.Prevent the formation of plaque. c. Dilute the concentration of bacteria.

The water rins devices for periodontal therapy has a main goal which is:! a- remove plaque.! b- prevent plaque attachment.!! c- dilute bacterial toxin.! d- remove dental pocket.!

113.

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114. One of these a- Obes, malnourished. b- Pt. has xerostomia. c- Less plaque score.

is less exposed to extensive dental caries:

115. Calculus induces further a) Directly stimulates inflammation. b) more plaque adhere to it. c) irritate the gingiva.!

periodontal lesion due to:

116. Missing lower six and tilted 7: a- Uprighting of molar by orthodontics. b- Proximal half crown. c- Telescope crown. d- Non rigid connector.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!

‫ ﺷﺎء ﷲ‬%&' ‫ &ﻷﺧ)ﺮ‬,‫ &ﻻﺧﺘ)ﺎ‬,‫ﻨﺨﺘﺎ‬1 2‫ ﻛﺪ‬5&‫ &ﻟﺴﺆ‬9‫ﺎ!!ﻛﻞ!ﻣﺎ!ﺳﺒﻖ ﺑﺲ ﻟﻮ ﺟ‬#‫ﺟﻮ!!ﺧ‬$!‫ﺠﺐ‬#!‫ﻟﺘﺎﻟﻲ‬%!‫ﺣﺴﺐ!&ﻟﻤﺮﺟﻊ‬ . ‫!ﺻﺤ"ﺢ‬ Oxford handbook, 3rd edition, page 303 117.

Floss used to: a. Remove interproximal plaque. b. Remove overhangs. c. Stimulate gingival.

118.

Plaque consists of:

a. Bacteria. b. Inorganic material. c. Food. !

119. a. b. c. d.

120. a. b. c. d.

To prevent perio problem, most effective method is:

Community program. Removal of plaque. Patient education. Water floridation.

Length of pins must be equals in both tooth and restoration by a depth of:

1 mm. 2 mm. 3 mm. 4 mm.!

121.

!

Stainless steel pin is used in amalgam for:

a. Increase retention. b. Increase resistance. c. Increase strength. 17 | P a g e All

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d. a and b.

* stainless steel pins are used mainly in amalgam to enhance: 1- retention. *** 2- strength. 3- resistance form. 4- all of the above.

Pins increase both retention and resistance forms but mainly the retention. Post ‫ﻧﻔﺲ &ﻟﻜﻼ) ﻣﻊ &ﻟﺒﻮﺳﺖ‬/ 122. Calcium channel blockers cause increase saliva secretion: a. True. b. False.

123.

RCT contraindicated in:

a. Vertical fracture of root. b. Diabetic Pt. c. Periodontally involved teeth. !

124. a. b. c. d.

What can we use under composite restoration:

Ca (oh). ZOE. ZINC phosphate cement. a and c

125.

Gutta percha contains mainly:

a. Gutta percha 20 %. b. ZINC oxide 66 %. c. ZINC phosphate.

126. a. b. c. d.

Single rooted anterior tooth has endodontic treatment is best treated by:

Casted post and core. Performed post and composite. Performed post and amalgam. Composite post and core. 127.

Post fracture decreases with: a. prefabricated post. b. ready made post. c. casted post. d. metal post.

Teeth with RCT and you want to use post, which post is the least cause to tooth fracture:

128.

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1. Ready made post. 2. Casted post. 3. Fiber post. 4. Prefabricated post.

129. 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.

For root canal treated tooth u choose to put post & amalgam this depends on: a. remaining coronal structure.

130.

b. root divergence. c. presence of wide root. d. others. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 131.

!!!!!!!

Post length increasing will: a. increase retention. b. increase resistance. c. increase strength of restoration.

132. For post preparation we should leave …… mm of GP: a. 2mm. b. 10mm. c. 5mm.

* 4 – 5 mm. 133. Which of the following endodontic failure may be retreated only with surgery: a. b. c. d.

Missed major canal. Persistent interappointment pain. Post and core. Short canal filling.

134. Which of the following failure may be treated nonsurgically: a. b. c. d.

Post filling that has removed. Severe apical perforation. Very narrow canal with a periapical lesion and the apex can not be reached. None of the above.

135. a. b. c. d.

In post and core preparation must:

Extend to contrabevel. Extend to full length tooth preparation. Take same shape of natural tooth. Take shape of preparation abutment.

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e. f. g. h.

a & d. a & b. d & c. b & c.

136. After RCT, for insertion of post dowel: a. Post applied pressure. b. Post should be lose. c. Insert it without pressure but with retention.

137. a. b. c. d.

Amount of GP should after post preparation:

1 mm. 4-5 mm. 10 mm. None of the above.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

138. a. b. c. d. e. f. g. h.

!!!!!!!!!!!!!!!!!!!!!!

Post retention depends on:

Post length. Post diameter. Post texture. Core shape. Design of the preparation. a and b a, b and c. All of the above.

139. The best restoration for maxillary central incisor that has received RCT through conservatively prepared access opening would be: a. b. c. d.

Post-retained metal-ceramic crown. Post-retained porcelain jacket crown. Composite resin. None of the above.

140.

One of anatomical land marks in determining the posterior occlusal plane during denture construction is :

a. Ala tragus line. b. Ala orbital. c. Frankfort plane.

141. a. b. c. d.

7.2 12 19 5.5

142.

The PH of the calcium hydroxide is:

!

Hyperemia results in:

:‫ﻟﻰ‬# $%‫ﺗﺆ‬

a. Trauma of occlusion. b. Pain of short duration. c. Radiographic changes. d. All of above.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 20 | P a g e

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143.

Tooth had trauma resulted in hyperemia?! a) pain increased with cold.! b) reversible condition.!! c)!pain of short duration.!! d) b and c.!!

!

e) all. 144. a. b. c. d.

The x- ray of choice to detect the proximal caries of the anterior teeth is:

Periapical x-ray. Bitewing x-ray. Occlusal x-ray. None of the above.

145.

In primary teeth, pathologic changes in radiographs are always seen in:

a. b. c. d.

Periapical area. Furcation area. Alveolar crest. At base of developing teeth.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

146.

Pulpitis in deciduous teeth in radiograph seen related to:

!!!!

a. furcation. b. apex of root. c. lateral to root.

147. In deciduous tooth, the first radiographic changes will be seen in: 1. Bifurcation area. 2. Apical area. 3. External root resoption. !

!"! #$ ‫ !ﻟﻠﺒﻨ&ﺔ‬+‫ !ﻟﺪ!ﺋﻤﺔ ﺗﺤﺖ !ﻷﺳﻨﺎ‬+‫ !ﻷﺳﻨﺎ‬5‫ﻮ‬78 ‫ﻮ !ﻟﺘﻐ&ﺮ!> !ﻟﺘﻰ ﺗﺤﺪ; ﻣﻊ‬A B‫ !ﻟﻤﻘﺼﻮ‬+$ ‫ﻛﺪ‬# $%$ * ‫ﻟﻌﺼﺐ‬% ‫ﺬﻛﺮ ﻣﺮ( ﻓﻰ‬- ‫ ﻟﻢ‬/0 ‫ﺔ‬2‫ﻟﻤﺮﺿ‬% 5%‫ﺮ‬2‫ﻟﺘﻐ‬% ‫ﻘﺼﺪ‬- :‫ﻧ‬0 ‫ﻻ@ﻗﺎ‬% B ‫ﺒﺺ‬4 . ‫ﻣﺴﺎ('ﺔ ﺑﺎﻟﺴﻢ‬ !

172.

Class II composite resin is lined by:

a. G.I. b. Reinforced ZOE. c. ZOE with epoxy cement. d. Cavity varnish.

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!

173.

Occlusal plane is:

a. Above the level of the tongue. b. Below the level of the tongue. !

174. a. b. c. d.

Lateral pterygoid muscle has how many origin:

1. 2. 5. 7.

!

175. a. b. c. d.

Embryo becomes fetus in:

1st week. 1st month. 2nd month. 3rd month.

: ‫ﻟﻰ!ﺟﻨ"ﻦ‬#!‫ﺗﺘﺤﻮ!!&ﻟﻤﻀﻐﺔ‬

!

176. a. b. c. d.

All are single bones in the skull except:

Lacrimal. Occipital. Sphenoid. Parietal.

177. The scientific evidence in dictating that oral lichen planus is a "premalignant lesion" is: a. b. c. d.

Very strong. Non-existent. Moderately strong. Weak.

178. a. b. c. d. e.

Oral lesions of lichen planus usually appear as:

White striae. Red plaque. Shallow ulcers. Papillary projections. Bullae.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!

* White striae: ‫ﻀﺎء‬$‫!ﺑ‬

!‫ﺧﻄﻮ‬

"Wickham striae".

179. The oral lesions of the lichen planus: a. b. c. d. e.

Are usually painful. Rarely appear before lesion elsewhere on the body. May be part of a syndrome in which lesions also appear on the skin, conjunctiva and genitalia. ! Often appear in nervous and high-strung individuals. Heals with scarring.

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180. All of the following are oral features of acquired immunodeficiency syndrome AIDS except: a. b. c. d. e.

Candidiasis. Erythema multiform. Hairy leukoplakia. Rapidly progressing periodontitis. Kaposi's sarcoma.

!

!‫ﺎ‬#‫*!ﻟﻮ )ﻨﺎ' &ﺧﺘ‬ ‫ﻟﻜﻦ‬$ %‫ ﻣﺮ* )ﻻ'ﺪ‬-‫ﺟﻮ‬$ ‫ﺔ ﻋﻠﻰ‬4‫ )ﻟﻔﻤ‬7‫ﺎ@ )ﻟﺜﺎﻧﻰ =ﻮ) ــــ‬T1 NO MO. * Stage IB disease ‫ >ــــ‬T2 NO MO. 698. File #40 means: a. 0.40 is the diameter at d1 . b. 0.40 is from d1 to d16 . 699. Cause of radicular a. Non vital tooth. b. Vital tooth. 700.

cyst:

Most difficult of extract:

A. Mand. 3rd molar with mesioangular fused roots. B. Mand. 3rd molar with distoangular angulation with divergent curved roots.

* Typically distoangular impactions are the easiest to extract in the maxilla and most difficult to extract in the mandible, while mesioangular impactions are the most difficult to extract in the maxilla and easiest to extract in the mandible. 701. Minimum a- 0.1 mm. b- 0.5 mm. c- 1 mm. d- 2 mm.

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thickness of noble metal crown:

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* noble metal crown = gold crown.

* What be the thickness of noble metal framework of the ceramometal crown? A. 0.3-0.5 mm. *** B. 1-1.5 mm. C. 0.1-0.2 mm. D. 0.5-0.8 mm.

* noble metal framework = noble metal substructure.

* The thickness of base metal framework of ceramometal crown is 0.10.3 mm. * base metal framework = base metal substructure. * Minimal thickness of porcelain in ceramometal crown is 0.7 mm. 702. To locate the canal orifice a- Barite probe. b- Endo spreader. c- Endo file with curved tip. d- Round bur.

use:

Also, endodontic explorer is used to search for canal orifices.

703. Healing by secondary intention causes: A- There is a space between the edges filled by fibrous tissue. B- Leading to scar formation. C- A and B.

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704. Contraindications for endo treatment A- non strategic tooth. B- non restorable tooth. C- vertical fracture tooth. D- tooth with large periapical lesion.

except:

* 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. ***

705. Arrange the steps: 1. Ca(oh)2 placing _ varnish _ base _ amalgam. 2. Ca(oh)2 placing _ base _ varnish _ amalgam. !‫ &ﺨﺘﺎ) ﻣﺎ &ﺤﻠﻮ ﻟ‬,- ,‫ﺳﻨﺎ‬- ‫ﺒ"ﺐ‬$ ‫ﻋﻠﻰ ﺣﺴﺐ ﻛﻞ‬, -‫ ﺻﺤ"ﺤﺘﺎ‬-‫ﺘﺎ‬2‫ﻤﺎ ﻧﻈﺮ‬7‫ ﻛﻼ‬-‫ﻦ ﺻﺤ"ﺤ"ﻦ ﻷ‬2;‫* ﻛﻼ >ﻻﺧﺘ"ﺎ‬ !"‫ﻻ‬$ %‫ )ﻟﺴﺆ)( ﻛﺪ‬-‫ﻟﻜﻦ ﻟﻮ ﺟﺎ‬$ %3‫ﻨﺨﺘﺎ‬7 ‫ =ﺒﻌﺎ ﻟﻜﻦ ﻟﻮ ﻛﺎ‬b & c )

!‫* &'& ﻟﻮ ﻗﺎ‬ .‫ﷲ‬

!‫ﻤﻨﻰ‬$‫ﻟﻰ!'ﻟﺴﻔﻠ"ﺔ!&ﻟ‬#‫ﻷ‬%!‫ﻟﺮﺣﻰ‬%!‫ﺣﺔ!ﺻﻐﺮ!!ﻓﻲ!ﻣﻨﻄﻘﺔ‬#‫ ﻣﺮ"ﺾ!ﻟﺪ"!!ﺟﺮ‬.1249 ‫ ﻋﺼﺐ‬$% .!‫ﻟﺮﺣﻰ‬%!‫ﻧﺴﻲ‬$!‫ﻟﻢ‬#!‫ﺟﺪ‬#!‫ﻟﺴﻨﻲ!&ﻟﺴﻔﻠﻲ‬%!‫ﻟﻔﻜﻲ‬%!‫ﻟﻌﺼﺐ‬%!‫!ﺑﻌﺪ!ﺗﺨﺪ"ﺮ‬ ‫ ﺣﺘﻰ!!ﻜﺘﻤﻞ!'ﻟﺘﺨﺪ"ﺮ!؟‬$%‫ﻧﺨﺪ‬

1. Lingual nerve. 2. Mental nerve. 3. Mylhoyid nerve. 4. Auriculotemporalis nerve.

!!"‫ﻨﺎ! "ﻋﺮ‬$!‫ﻟﻠﺜﺔ ﻟ"ﺲ‬%!‫ﻟﻠﻮ!!ﻋﻠﻰ‬%!!"#$ !‫ﻔﻞ!ﻟﺪ"!!&ﻧﺘﻔﺎ‬#! .1250 ‫ﺺ؟‬#‫ﻓﻘﻂ!ﻟﻌﺎ!!ﻏﺰ"ﺮ!ﻣﺎ!(ﻟﺘﺸﺨ‬ A. Eruption hematoma.

After remove impacted 3rd lower molar, there is parasthesia why?!! a. Irritating the nerve during extraction. !!

1251.

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b. Broke mandible.

The test for testing the bur in which all the blades of the bur pass through 1 point called:

1252.

a. Run out. b. Concentricity. c. Run out and concentricity. d. None of above.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

( !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻦ ﺟﺪ‬%‫ﻦ ﻣ'ﻤ‬%‫ﻦ !ﻷﺗ‬%‫!)!!ﻗﺮء !ﻟﺴﺆ!ﻟ‬ 1253. Mobility in midface with step deformity in frontoygomatic suture. Diagnosis: 1. Lefort II. 2. Lefort III. 3. Bilateral zygomatic complex fracture.!

1254.

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. ///////////////////////////////////////////////////////// 1255.

Two weeks baby born with 2 anterior teeth which is highly mobile, and his mother have no problem or discomfort during nursing him. What is ur managemnt:!!

a. Do not do anything as the baby have no problem during feeding.! b.!Do not do anything as the mother don’t feel discomfort.! c. U must extract as soon as possible to avoid accident inhalation of them. ! d.!Do nothing, it will shell by it self.!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

( !!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻦ ﺟﺪ‬%‫ﻦ ﻣ'ﻤ‬%%‫ﻦ !ﻷﺗ‬%‫!)!!ﻗﺮء !ﻟﺴﺆ!ﻟ‬ Most common cause of chipped porcelain in PFM:! a- Thin layer of metal.! b- Thin layer of porcelain.!

1256.

c- Centric occlusal contact at the junction of porcelain and metal.

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The forces action through a FPD onto the abutment tooth should be directed:!

1257.

1- As far as possible at right angles to the long axes of the teeth.! 2- Parallel to the long axis of the teeth.! 3- By decreasing the facio-lingual dimension of the pontic. 4-!By decreasing the mesio-lingual dimension of the pontic. 5- In a mesial direction so that teeth nearer the midline will offer additional support. a. 1+3+4 b. 1+2+5 c. 1+4+5 d. 2+3 e. 2+4 f. 2+5

!

////////////////////////////////////////////////////////////////////////// 1258. Which not compatible to A- GIC.! B- Zinc phosphate cement. ! C- Zinc polycarboxylate cement. 1259. The

by:!

the pulp:!

working time of zinc phosphate cement is shortened ( decreased )

a- Concentrating the acid.! b- Warming of glass slab. ! c- Incremental mixing of powder.! d- All of the !above. 1260. You

sent shade of PFM, technician gives you different color with same shade:!

a- Non uniform porcelain. b- Thick opaque.! c- Thin opaque. 1261. Bridge came from lab with different 1- Thick metal. 2- Thin porcelain. 3- Not uniform thickness of porcelain.

shade:

: ‫ﺤﺔ "ﻰ‬%‫ﺧﺮ ﻛﺎﻧﺖ (ﻻﺟﺎﺑﺔ (ﻟﺼﺤ‬2 3(‫ﻓﻰ ﺳﺆ‬7 Increased porcelain thichness OR thick porcelain. 1262. Most

abrasive contact:!!

a- tooth to tooth.!

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b- Porcelin to tooth. !! c- gold to tooth. 1263. Length

of post:!

a- 1/2 root.! b- 2/3 root.! c- 1/2 root containing in bone.! d- As much longer and leave 4 mm. apical seal.

( !!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻢ ﺟﺪ‬%‫)!!ﻗﺮء !ﻟﺴﺆ!* !ﻷﺗﻲ ﻣ‬ Concentrating of acid used in etching porcelain veneer:! a- 9.6 % hydrofluoric acid. ! b- 35 % phosphoric acid.! c- 37 % phosphoric acid.!

1264.

d- 37 % hydrofluoric acid.

• 9.6 % hydrofluoric acid & 37 % phosphoric acid.

. ‫* )ﻓﻀﻞ ﺑﻜﺘ"ﺮ‬+‫ﻷ‬- .‫ﻟﻨﻮ‬- ‫ ﺑﺲ‬34‫ﺨﺘﺎ‬7 ( a & c ) !‫ﺎ‬#‫ﻌﻨﻰ ﻟﻮ ﻓﻰ &ﺧﺘ‬- ‫ﻨﻔﻌﻮ‬- ‫ﻦ‬#‫&ﻻﺗﻨ‬ 1265. Placement

of maxillary anterior teeth in complete dentures too far superiorly and anteriorly might result in difficulty in pronouncing:! a) f and v sounds. ! b) d and t sounds.! c) s and th sounds.! d) most vowels.

1266. An

advantage of rubber-base impression material over reversible hydrocolloid!material is that rubber base impression material:! a) will displace soft tissue.! b) Requires less armamentarium.! c) is significantly more accurate. ! d) is more accurate if saliva, mucous or blood is present.

1267. Best provisional coverage for anterior a- Tooth colored polycarbonate crown. ! b- Stainless steel crown.! c- Zinc oxide engenol.

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teeth is:!

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1268. In

a clinical research trial we primarly need to:!!

a) Get written subject in the patient's own native language. b) Verbally write subject briefly.! c) Tell patients that they are part of study.

1269.

!

Radiolucent structure occupied by a radiopaque structure that forms a mass of disorganized arrangement of odontogenic tissue:! a. Complex odontoma.

!

b. Calcifying epithelial odontogenic cyst.! c. Compound odontoma.

!

* Compound odontoma: !‫ﺗﺸﺒ! ﺷﻜﻞ &ﻷﺳﻨﺎ‬% ‫ ﻛﺘﻠﺔ ﻣﻨﻈﻤﺔ 'ﻟﺘﺮﺗ"ﺐ‬a mass of organized arrangement of odontogenic tissue. * Complex odontoma: !‫ﻛﺘﻠﺔ ﻏ'ﺮ ﻣﻨﻈﻤﺔ 'ﻟﺘﺮﺗ"ﺐ &ﻻ ﺗﺸﺒ! ﺷﻜﻞ &ﻷﺳﻨﺎ‬ a mass of disorganized arrangement of odontogenic tissue.! 1270.

Which of these canal irrigants is unable to kill e. feacalis!

:! A. Naoh. ! B. MTAD. ! C. Chlorhexidine. ( Naoh not Naocl )

: !"# ‫ﺲ‬%‫*!ﺧﺪ ﺑﺎﻟﻚ ﻛﻮ‬

! 1271.

The least effective irrigant against

e. feacalis:!!

a) Sodium hypochlorite ( Naocl ).! b) Tetracycline. ! c) Iodine. ! d) Chlorohexidine. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !

1272.

Irrigant that kills e-faecalis:

1- naoh. 2- mtad. 2- saline. 3- chlorohexidine.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 180 | P a g e

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1273.

Irrigant that kills e-faecalis:

1- naocl. 2- mtad. 2- saline. 3- chlorohexidine.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!

: !!!!!!!!!!‫ﻣﻠﺤﻮ"ﺔ!'ﺎ!!!!!!!!!!!!!ﻣﺔ ﺟﺪ‬

* Sodium hypochlorite = Naocl not Naoh.!! • MTAD is more effective than Naocl in killing E. faecalis.

• Naocl is more effective than MTA in killing E. faecalis. Irrigant solution of pulp

• •

‫ﺴﺖ‬#‫ﻟ‬

MTA

!" ‫&ﻟﻜﻦ‬

Also, Chlorohexidine & Tetracycline can kill E. faecalis but these are very weak. Naoh, saline & iodine are unable or uneffectine irrigants ( or least effective irrigants ) in killing E. faecalis.

1274. While dentist making biomechanical preparation by using NI TI file, it’s broken this is because the property of:

a. elastisity and memory.! b. rigidity and memory.! c. axial fatigue. ! d.!tarnish.

* The most important reasons for breaking Ni Ti files is cyclic fatigue and torsional stresses. 1275.

Root end resection, what is the conditioning:!! a. Cetric acid.! b. Tetracyclin.! c. EDTA.!!

!!

* Cetric acid is a retrograde filling material but it’s used rarely.

( !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻢ ﺟﺪ‬%‫)!!ﻗﺮء !ﻟﺴﺆ!* !ﻷﺗﻲ ﻣ‬ !

1276.

During endodontic surgery, the irrigation solution

used is:! a. Saline. ! 181 | P a g e

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b. EDTA.! c. Naocl. ////////////////////////////////////////////////////////////////////////////////// 1277. Sterilization means killing of:! a. Virus.! b. Fungi.! c. Bacteria.! d. Virus, fungi, bacteria & bacteria spores. ! e. Virus, fungi & bacteria. 1278.

Edentulous pt. class II kenndy classification 2nd premolar used as abutment when we serving we found mesial undercut what is the proper clasp used: 1/ wrought wire with round cross section. 2/ wrought wire with half round cross section. 3/ cast clasp with round cross section. 4/ cast clasp with half round cross section.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1279. Patient

who has un-modified class II kennedy classification, with good periodontal condition and no carious lesion, the best clasp to use on the other side:

a) Reciprocal clasp. b) Ring clasp. c) Embrasure clasp.

* Reciprocal clasp =

Aker's clasp.

1280. A

removable partial denture patient class II Kennedy classification. The last tooth on the left side is the 2nd premolar which has a distal caries. What’s the type of the clasp you will use for this premolar:

A. Reciprocal clasp. B. Gingivally approaching clasp. C. Ring clasp.

1281.

Balanced occlusion in complete denture helps in:!! A. Retention.! B. Stability. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!! After a trauma ( injury ) on a primary tooth what is the least possibility?! A. Changes in the permanent tooth enamel color.! !

1282.

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B. Changes the primary tooth color.! !!!!!!C. Apex pathology on primary tooth.

* Patient 3 years old had injury ( trauma ) in the primary teeth, the permanent teeth rarely undergo to: A. Microabrasion in the enamel. ***! B. Discoloration.! C. Dilaceration. D. Partially stoppage of the root formation. * Discoloration and hypoplasia are the most frequent effects on permanent teeth after trauma to primary teeth. * Enamel hypoplasia: incomplete development of enamel causing a thin and weak enamel layer..!

In case of infiltration anesthesia we give:! a) submucosal. ! b) intraosseous.! c) subperiosteal.! 1283.

d) none. !

1284. The patient who have not breakfast, we never give him anesthesia because:! a) hyperglycemia.! b) hypoglycemia. c) increased heart rate.! d) hypertension. !

! 1285.

Gingivitis means:!

a) Inflammation of the periodontal ligaments.! b) Inflammation of the bone.! c) Inflammation of the gingiva. ! d) Inflammation of the tongue. !

Patient is suffering a pain during sleep the diagnosis is:! a) Inflammation of dentin.! b) Inflammation of enamel.! c) Inflammation of cementum.! 1286.

d) Inflammation of pulp. !

1287.

Permanent restoration is:!

a) Calcium hydroxide.! b) Amalgam.! c) Alginate.! d) Zinc oxide eugenol.

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!

1288.

Composite is used mainly for:!

1289.

For injection local anesthesia in the lower jaw we use:!

a) Anterior teeth. ! b) Posterior.! c) a+b.! d) None. !

a) Short needle.! b) Long needle. ! c) None.

!

1290. In case of advanced upper jaw to the lower jaw this is called:! a) Angle class I.! b) Angle class II. ! c) Angle class III.! d) All of the above. !

1291.

The best method for brushing:!

1292.

Apecectomy means:!

1293.

The instruments for examination are:!

a) Vertical.! b) Horizontal.! c) Bass sulcular method ( Bass method ).! d) All of the above. !

a) Surgical removal of the apical portion of the root. ! b) Removal of one or more roots.! c) The root and the crown are cut lengthwise.! d) None. !

a) Probe and tweezer.! b) Mirror.! c) a + b. ! d) Amalgamator. !

Panorama x-ray is used for:! a) Periapical tissues.! b) Interproximal caries.! c) Giving complete picture for upper and lower jaws. ! 1294.

d) None. !

1295.

Adrenaline is added to local anesthesia for:!

a- Increasing the respiratory rate.! b- Prolonging the effect of local anesthesia. ! c- Increasing the bleeding.! d- None. !

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1296.

…… is a white lesion:!

1297.

Fordyce's spots is on:!

a- Lichen planus. ! b- Cancer.! c- Heamatoma.! d- None. !

a- Tongue.! b- Oral mucosa. c- Upper lip.! d- Throat.

1298. a- Aspirin.!

…… is an anticoagulant agent:

b- Heparin. ! c- Paracetamol.! d- Evex. * Heparin OR Warfarin is an anticoagulant agent.

!

1299.

a- Wharton.! b- Bartholin.! c- Barvenous.! d- Stensen.

Duct of submandibular gland is:!

* Stensen is the duct of parotid gland.

1300.

Leukoplakia is present on:!

1301.

Cranial nerves are:! !

a- The mouth. ! b- Eye.! c- Heart.! d- Lungs. !

a- 12 nerves. b- 14 nerve.! c- 10 nerve.! d- 16 nerve.

* Twelve pairs of cranial nerves.

. !‫*) ﻣﻦ &ﻷﻋﺼﺎ‬+ 12!

!

1302. 185 | P a g e

According to two digits system, 42 means:! All Rights Reserved 2013| OziDent.com

a- lower right lateral incisor. ! b- upper left lateral incisor.! c- upper right lateral incisor.! d- none.!

According to universal system, 6 means:! a- upper left first molar.! b- lower left first molar.! c- lower right first molar.! 1303.

d- None.

* Number 6 refers to upper right canine. 1304.

A preventive agent is:!

1305.

One of the following releases fluorides:!

1306.

Dental plaque is formed after:!

a- Composite.! b- Glass ionomer.! c- Fluoride. ! d- Zinc oxide eugenol. !

a- Composite.! b- Glass ionomer. ! c- Fluoride.! d- Zinc oxide eugenol. !

a- 6 hours. ! b- 12 hours.! c- 24 hours.! d- 48 hours. !

Tooth paste with fluoride is:! a- Systemic application.! b- Topical application. ! c- a+b.! 1307.

d- None.

1308. a- 2 ppm.!

Fluoride in water it concentrates:!

b- 1 ppm. c- 3 ppm.! d- None.

* 1 ppm or 1-1.5 mg/litre. 186 | P a g e

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1309.

Too much ingestion of fluoride may lead to:!

1310.

Deficiency of vitamin C leads to:!

a- Dental caries.! b- Dental fluorosis. ! c- Gingivitis.! d- None. !

a- Scurvy. b- Anemia. ! c- Rickets.! d- Defect in blood clotting. ! !

1311. a- Scurvy.! b- Anemia.! c- Rickets.!

Deficiency of vitamin K leads to:!

1312. a- Scurvy.!

Deficiency of vitamin D leads to:!

d- Defect in blood clotting.

!!

b- Anemia. ! c- Rickets. d- Defect in blood clotting.

* Deficiency of vitamin B12 leads to pernecious anemia.

( !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻢ ﺟﺪ‬%‫ﺬ! !ﻟﺴﺆ!' ﻣ‬, -‫) !ﻗﺮ‬ 1313. At which age will a child have 12 permanent and 12 primary teeth: i. ii. iii. iv.

9 years old. 11 years old. 14 years old. None of the above.

! ! ‫ﺔ ﻓﻰ (ﻟﻔﻚ (ﻟﻌﻠﻮ* )(ﻟﺴﻔﻠﻰ ﻣﺶ‬0‫ﺔ (ﻷﻣﺎﻣ‬0‫ (ﻟﻠﺒﻨ‬5‫ﺳﻨﺎ‬7 ‫ﺑﻌﺔ‬9‫ (ﻷ‬: !"‫ ﺳﻨﻮ‬9 ‫*!ﻋﻨﺪ ﻋﻤﺮ‬ !"‫ﺒﻌﺎ *ﻷ(ﺑﻌﺔ ﺿﺮ‬- .‫ﻜﻮ‬1‫ﺔ "ﺑ‬1‫ﺔ "ﺳﻔﻠ‬5‫ﺔ ﻋﻠﻮ‬1‫ﻣﺎﻣ‬8 ‫ ;*ﺋﻤﺔ‬.‫ﺳﻨﺎ‬8 ‫ﻄﻠﻊ ﺑﺪﻟ>ﻢ‬#‫ﺑ‬% ‫ﻣﻮﺟﻮ('ﻦ‬ : !!!!!!!!"! ‫ﻦ‬$%‫) ﻣﻮﺟﻮ‬%‫ﻮ! !ﻟﺴﺎ‬- ‫!ﻟﺪ!ﺋﻤﺔ !ﻟﻠﻰ‬ 187 | P a g e

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8 ! "‫ﺎ‬$‫ &ﻧ‬4 : ‫"ﻢ‬# ‫!!ﺳﻦ‬12! ‫ﻦ 'ﻟﻌﻠﻮ) ('ﻟﺴﻔﻰ "ﻮ‬-‫ﺔ ﻓﻰ 'ﻟﻔﻜ‬-‫ 'ﻟﻠﺒﻨ‬3‫* ﻋﺪ! 'ﻷﺳﻨﺎ‬ ‫ﻤﺎ‬# ‫ﺿﺮ)( 'ﻟﻠﻰ‬ .( D & E ) !

!‫ﺳﻨﺎ‬% 8 : ‫"ﻢ‬# ‫ ﺳﻦ '&ﻀﺎ‬12 ‫"ﻟﺴﻔﻠﻰ "ﻮ‬# $‫ "ﻟﺪ"ﺋﻤﺔ ﻓﻰ "ﻟﻔﻜ)ﻦ "ﻟﻌﻠﻮ‬2‫ﻋﺪ! "ﻷﺳﻨﺎ‬$ * . ( !"‫ﻟﻰ &ﻟﻠﻰ ('ﺎ ) &ﻟﺴﺎ‬+‫! &ﻷ‬+‫ﺑﻌﺔ ﺿﺮ‬2‫&ﻷ‬+ ‫ﺳﻔﻠ'ﺔ‬+ ‫ﺔ‬5‫ﻣﺎﻣ'ﺔ ﻋﻠﻮ‬9! ! !

1314.

Medicine ethics aim to: a. b.

c. d.

The dentist should study to know patient psychology. Not to compromise or undermine ability to treat patient in community as professional. Ability to make decision. All of above.

1315. Patient

during recurrent normal check, he had diffirent sense on

percussion on his tooth and x_ray widening lamina dura apical 3rd?! a) Chronic apical priodontitis.! b) Acute!apical periodontitis.! c) Chronic abscess.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1316. During surgery, A) Stillies forceps.!!

firmly handle forceps of flap tissue:!

B) Adson forceps.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!"‫ﺔ ﻛﻤﺎ ﻓﻰ "ﻟﺴﺆ‬,‫ "ﻟﺨﻠﻔ‬01 ‫ﺔ‬,‫ﻞ ﻓﻰ "ﻟﻤﻨﻄﻘﺔ "ﻷﻣﺎﻣ‬8 9‫ ﻦ !ﻷ‬C 0‫! ﻟﻮ ﺟﺎ) !ﺧﺘ>ﺎ‬E! . !"‫ﻷ‬$ %‫ﻻﺧﺘ'ﺎ‬$ %‫ﻨﺨﺘﺎ‬- ‫ﺒﻘﻰ‬1 2‫ﻛﺪ‬ 1483.

Distal fissure of premolar contact opposes:

a- Middle of the middle third & buccal fissure is wider than lingual. b- Cervical line & lingual fissure is wider than buccal. c- Middle of the middle third & vice versa. d- Cervical of the middle third & vice versa.

You make a ledge in the canal. You want to correct this. What is the most complication occur in this step:

1484.

a. Creation false canal. b. Apical zip. c. Stripping. d. Perforation.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

* Ledge = step * Perforation = apical perforation = perforation of the apex.

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* Stripping = stripping perforation = lateral perforation = perforation

of the strip.

* In RCT, over preparation of the outer wall of the optical curvature of the canal with inflexible instrument will cause: A. Zipping. *** B. Perforation. C. Elbow formation. D. Ledge formation. E. Crazing.

* Zipping = Apical zip. 1485.

To prevent gingival injury place the margin of the retainer:

A. At the level of gingival crest. B. Above gingival crest. C. Apical to gingival crest 1 mm. d. Apical to gingival crest 0.5 mm.

A completely edentulous patient, the dentist delivers a denture in the 1st day normally, 2nd day the patient returns unable to wear the denture again, the cause is: a) Lack of skill of the patient. b) Lack of frenum areas of the complete denture.

1486.

1487.

How can you alter the setting time for alginate:

a) Alter ratio powder water. b) Alter water ratio. c) We can’t alter it. d) By accelerated addition.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

‫ﻟﻤﺎء‬% &'%‫ﺟﺔ ﺣﺮ‬#$ ‫ﻘﺔ "ﻰ ﺗﻐ&&ﺮ‬%‫ﻓﻀﻞ 'ﺮ‬+ ‫ﻟﺬﻟﻚ‬/ 0‫ﻨﺎ‬3‫ﻷﻟﺠ‬6 0‫ﺮ ﺑﻌﺾ ﺻﻔﺎ‬3‫ﻘﺔ ﺗﻐ‬%‫ﻟﻄﺮ‬6 ?‫ﻟﻜﻦ "ﺬ‬/ . ‫ﺒﻌﺎ‬$ ‫ﺎ‬%&‫ﻨﺨﺘﺎ‬% ‫ﻟﻠﻰ‬- ‫ﻰ‬.‫ ﻓ‬0-&‫ﺎ‬1‫ﻻﺧﺘ‬- ‫ ﻓﻰ‬0‫ﺟﺪ‬6 -7‫ ( ﻓﺎ‬Alter water temperature ) 1488. How can you alter a) Alter ratio powder water. b) Alter water temperature. c) We can’t alter it. d) By accelerated addition.

the setting time for alginate: !

( !!!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻢ ﺟﺪ‬%‫ﻷﺗﻰ ﻣ‬$ %$‫ﻟﺴﺆ‬$ !‫ﻗﺮ‬$ ) 224 | P a g e

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1489. What’s the reason of the wax shrinkage upon fabrication of the bridge/crown: A. Solidification shrinkage. B. Porosity shrinkage. C. No shrinkage occurs.! !

////////////////////////////////////////////////////////////////////! !

! 1490.

Patient who has un-modified class II kennedy classification, with good periodontal condition and no carious lesion, the best clasp to use on the other side: a) reciprocal clasp. b) ring clasp. c) embrasure clasp. d) gingivally approaching clasp.

* reciprocal clasp = aker's clasp.

1491.

You should treat ANUG until the disease completely removed. Otherwise, it will change to necrotic ulcerative gingivitis NUG: A) Both sentences are true. B) Both sentences are false. C) 1st true, 2nd false. D) 1st false, 2nd true.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

( !!!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻦ ﺟﺪ‬%‫ﻷﺗ!"ﻦ ﻣ'ﻤ‬$ ‫ﻟ!ﻦ‬$‫ﻟﺴﺆ‬$ !‫ﻗﺮ‬$ )

Studies show that complete remineralization of surface o an accidentally etched enamel:

1492.

a- never occur. b- after hours. c- after weeks. d- after months. 1493.

Wax properties are:

1/ Expansion. 225 | P a g e

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2/ Internal stress.

. ‫ﻦ ﺻﺤ"ﺤ"ﻦ‬%&‫ﻻﺧﺘ"ﺎ‬+ ,- +‫ﻮ‬/0 ‫ ﺧ"ﺎ& ﻧﺎﻗﺺ‬4‫ﻨﺎ‬/ ,- ‫ﻋﺘﻘﺪ‬- * : !" ‫ﺚ‬$‫ﻦ ﺣ‬$‫ﺤ‬$‫ﺎ*)ﻦ ﺻﺤ‬$‫ﻻﺧﺘ‬/ * Wax properties are: 1. Thermal expansion. 2. Internal stress.

! ‫ﺒﻘﻰ‬$ ‫ﻐﺔ *ﻟﺴﺎﺑﻘﺔ‬,‫ ﻟﻜﻦ ﻟﻮ ﺟﺎء ﺑﻨﻔﺲ *ﻟﺼ‬67‫ﻨﺨﺘﺎ‬: ‫ﻦ ﻣﻌﺎ ﺿﺮ< ;ﺤﺘﻮ‬A‫ﻻ‬, ‫ﻟﻌﻈﻢ‬% * Periodontal currettage:

( !!!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻦ ﺟﺪ‬%‫ﻷﺗ"ﺔ ﻣ'ﻤ‬% ‫ﻟﺜﻼﺛﺔ )ﺳﺌﻠﺔ‬% !‫ﻗﺮ‬$ ) 1525. If you do mouth wash by 10% glucose, the PH can be read from the curve: A. The PH in dental plaque after the mouth rinse (mouth wash) with 10 % glucose ( or fructose ) changes ( up and down ) but the most high PH is 6.5 – 7 .

1526. Pt. have trauma in upper central incisor, the tooth and the alveolar bone move as one piece,!in examination 232 | P a g e

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intraorally x-ray you will see: !

a. gap between the apex of root and alveolar bone. !b. definite line of fracture. c. no appear in x-ray.

1527. Yellow-brown hypomineralization of enamel with or without hypoplasia can be treated by: A. Acid-pumice microabrasion. B. Composite restoration. C. Fixed crown. //////////////////////////////////////////////////////////////////// 1528.

!

3 months baby had black-blue discolured rapid growing swelling, the x-ray shows unilocular radiolucency and displaced tooth bud, is it: a. Aneurysmal bone cyst. b. Melanotic neuroectodermal tumour. c. Ameloblastic fibroma. -!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!! 1529.

!!!!!!

!

What first treatment of thump suking?

a. Consult. b. Rewarder therapy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! 1530.

A 7 years child has a habit of finger sucking what is the best way to start a therapy with:! a. Rewarding therapy.! b. Counseling therapy.! c. Punishment.!! d. Remaindering therapy.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!‫ﻟﺬ‬$ %‫ﻟﺠ'ﺎ‬$ ‫ﺮﻛﺐ‬$ %&‫ﻗﺖ ﻗﺼ(ﺮ ﻻ‬, ‫ﻟﻮ ﻣﻨﻔﻌﺶ ﻓﻰ‬, ‫ ﻧﻔﺴﻰ‬%‫!ﻋﻼ‬ ‫ﺋﻤﺔ‬$‫ﻟﺪ‬$ '‫ﺮ ﺑﺎﻷﺳﻨﺎ‬.‫ ﺗﻈ‬1‫ ﺳﻮ‬3‫ﺎ‬4‫ﻟﺘﺸﻮ‬$ ‫ﻟﺴﻦ‬$ $‫ﺬ‬4 ‫ﻟﻌﺎ?; ﻣﺒﺎﺷﺮ; ﻷ' ﺑﻌﺪ‬$ !‫ﺬ‬# ‫'ﻤﻨﻊ‬ . ‫ﻤ"ﺔ‬$‫ﺪﺧﻞ ﻓﻰ ﻣﺸﺎﻛﻞ ﺗﻘﻮ‬$1 ‫ﻀﺎ‬$3 ‫ﻟﻔﻚ‬71

* Counseling therapy:

1531.

7 years old pt. thumb sucking, what is the management: 1. 2. 3. 4.

Rewarding system. Counseling therapy.! Adjunctive therapy. Nothing.

( !!!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻦ ﺟﺪ‬%‫ﻷﺗ"ﺔ ﻣ'ﻤ‬% ‫ﻟﺜﻼﺛﺔ )ﺳﺌﻠﺔ‬% !‫ﻗﺮ‬$ ) !

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!

1532.

Glass ionomer:!!

a) introduction 1970 . ! b) needs dry field when application. ! c) both.! d) none of the above.

* Glass ionomer!introduction in 1969, 1970 OR 1972 .!

1533. Pacifier habit what you see in his mouth pt.: a. Anterior open bite with expansion max. bone.! b. Anterior open bite, posterior crossbite. !

7 years old

c. Move incsial to labial.

Which one of the conditions would delay a dentist's decision of taking full mouth x-ray examination?

1534.

a. Pregnancy. b. Patient had full mouth examination by x-ray 6 months ago. c. Patient will receive radiotherapy next week. d. Patient had CT examination last week. //////////////////////////////////////////////////////////// !

1535. The narrowest canal found in a three root maxillary first molar is the: 1. 2. 3. 4. 5.

Mesio-buccal canal. Disto-buccal canal. Palatal canal. Disto-palatal canal. Mesio-palatal canal.

* Mesio-palatal canal = MB2 = M2 = 4TH canal and it’s the narrowest canal in the maxillary first molar. * Mesiobuccal canal is narrower than distobuccal canal.

1536.

Which part of root canal diameter is the smallest:

a. Radigraphical apex. b. Apical foramen. c. Apical constriction.

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* Apical constriction is the smallest part in the root canal. * Apical foramen is the largest part in the root canal.

* What is the smallest area in root canal: A- apex in radiograph. B- cementoenamel junction. C- dentinoenamel junction. D- cementodentinal junction.

‫* ﻟﻜﻦ‬ ‫"ﺔ‬#‫*ﻰ (ﺻﻐﺮ ﺟﺰء ﻓﻰ 'ﻟﻘﻨﺎ( 'ﻟﺠﺬ‬+ ‫ﻷﺻﺢ‬. ‫ﺎ *ﻰ‬0‫*ﺎ ﻷﻧ‬2‫ ﻧﺨﺘﺎ‬.............‫ﺒﻌﺎ‬7 8‫ﺟﺪ‬+ .:. . !‫ﻼ‬#‫ﻻ‬% ‫ﻋﻠﻰ‬

apical constriction

! !

1537.

Record the vertical dimension in order to:

a. To determine the amount of space between the mandible and the maxilla which will be occupied by an artificial teeth. b. To determine vertical and horizontal levels of the teeth. c. a and b. d. None. !

1538.

Rideal walker test for: A. Disinfection. B. Sterilization. C. Cleaning.

1539. TB patient in active stage ( sputum treatment: 235 | P a g e

!‫ ) &ﻟﺒﻠﻐﻢ '&ﻟﺒﺼﺎ‬when we do

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a. Emergency case. b. With rupper dam. c. With mask. d. Postpone the treatment.

!

* TB in active stage! ( sputum !‫ ) &ﻟﺒﻠﻐﻢ '&ﻟﺒﺼﺎ‬: It’s an emergency case: send him to emergency dental care in * If TB is inactive, you can do dental treatment.

a hospital.

! !

1540.

A- G.I.! B- Caoh. ! C- Silver point. D- Composite.!

When root perforation we close it by:

!

* MTA is the best material for treatment of the perforations then Caoh then G.I.

1541. is:

Irrigation solution for RCT causes protein coagulation

1- Sodium hypochlorite. 2- Iodine potassium. 3- Formocresol. 4- None of the above. ! ! !

( !!!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻦ ﺟﺪ‬%‫ﻷﺗ""ﻦ ﻣ'ﻤ‬% ‫ﻟ"ﻦ‬%‫ﻟﺴﺆ‬% !‫ﻗﺮ‬$ ) !‫ﺪ"ﺔ ﻣﺘﻰ!ﻧﺒﺪ!!ﺑﺼﻨﻊ‬$‫"ﺔ!ﻣﻌﺎﻟﺠﺔ!ﻟﺒ"ﺔ!ﺗﻘﻠ‬#$%!‫ ﻋﻨﺪ!"ﺟﺮ"ء!ﻣﻌﺎﻟﺠﺔ!!ﻓﺔ‬.1542 : ‫'ﻟﺘﻌﻮ"ﺾ‬

.‫ﺎ!!"!!!ﺳﺎﺑ"ﻊ!ﺑﻌﺪ!'ﻟﻤﻌﺎﻟﺠﺔ‬#!!!‫"ﻷﻻ!!&ﻟﺤﺎ"!!ﺗﺒﻘﻰ!ﻟﻌﺪ‬#!‫ﺎء!'ﻟﻤﻌﺎﻟﺠﺔ &ﻟﻠﺒ"ﺔ‬#‫ﻣﺒﺎﺷﺮ!!ﺑﻌﺪ!&ﻧﺘ‬ ! !4!!‫"ﺔ ﺷﻌﺎﻋ"ﺎ!ﻟﻤﺪ‬#$‫ﻟﺸﻜﻞ!&ﻧﻨﺘﻈﺮ!ﺷﻔﺎء!"ﻷﻓﺔ!'ﻟﺬ‬%&!‫ﻔﺔ‬#$‫ﻧﺼﻨﻊ!ﺗﻌﻮ"ﺾ!ﻣﺆﻗﺖ!ﻟﺘﻌﻮ"ﺾ!'ﻟﻮ‬ . ‫!!ﺷ"ﺮ‬8 !12!!‫"ﺔ ﺷﻌﺎﻋ"ﺎ ﻟﻤﺪ‬#$‫ﻟﺸﻜﻞ!&ﻧﻨﺘﻈﺮ!ﺷﻔﺎء!"ﻷﻓﺔ!'ﻟﺬ‬%&!‫ﻔﺔ‬#$‫ﻧﺼﻨﻊ!ﺗﻌﻮ"ﺾ!ﻣﺆﻗﺖ!ﻟﺘﻌﻮ"ﺾ!'ﻟﻮ‬ . ‫!!ﺷ"ﺮ‬24! . ‫ﻛﻞ!ﻣﺎ!ﺳﺒﻖ!ﺧﻄﺄ‬

1 2 3 4

‫ ﻧﻀﻊ‬#$ ‫ﻟﺠﺬ* ﻓ(ﻤﻜﻦ‬. ‫ﻓﺔ ﻋﻨﺪ‬$ 3$ 4‫ﻨﺎ‬6 ‫ﻟﻢ ﺗﻜﻦ‬9 ‫ﺔ‬:;‫ﻟﻌﺎ‬. ‫ﻟﻠﺒ(ﺔ‬. ‫ﻟﻤﻌﺎﻟﺠﺔ‬. ‫* ﻟﻜﻦ ﻓﻰ ﺣﺎﻟﺔ‬ 236 | P a g e

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. ( 1 ‫ﻗﻢ‬# ) ‫ﻊ‬%‫ ﺧﻼ* )ﺳﺎﺑ‬-) .‫ﺎ‬/) *‫ ﺧﻼ‬-) *‫ﻟﺤﺎ‬2 ‫ﻟﺘﺎﺟﻰ ﻓﻰ‬2 ‫ﺾ‬/‫ﻟﺘﻌﻮ‬2

!‫"ﺔ!!ﻣﺘﻰ!ﻧﺼﻨﻊ‬#$%!!‫ﺣﺔ!ﺣﻮ‬#‫ ﻧﻔﺲ!"ﻟﺴﺆ"!!&ﻟﺴﺎﺑﻖ!ﻟﻜﻦ!ﻣﻊ!ﺟﺮ‬.1543 :‫ﺎﺋﻲ‬$‫'ﻟﺘﻌﻮ"ﺾ!'ﻟﻨ‬

. ‫!!ﺷ"ﺮ‬2! !1!‫ﻣﻦ‬ . ‫!ﺷ"ﺮ‬3! !2 ‫ﻣﻦ‬ . ‫!ﺷ"ﺮ‬4! !3!‫ﻣﻦ‬ !.!‫!ﺷ"ﺮ‬8! !6!‫ﻣﻦ‬

1 2 3 4 !!!!!

‫ﻧﻀﻊ ﺗﻌﻮ*ﺾ ﺗﺎﺟﻰ ﻣﺆﻗﺖ‬0 ‫ ﺗﺼﻞ ﻟﺴﻨﺔ‬78 ‫ﻮ! *ﻤﻜﻦ‬#$!!‫"ﺔ !ﻧﻨﺘﻈﺮ!ﻣﺪ‬#$% &‫ﺣﺔ ﺣﻮ‬#‫* !ﺑﻮﺟﻮ!!ﺟﺮ‬ . ( !‫ﻮ‬#‫ ﺷ‬8 ‫ﻟﻰ‬# 6 !‫ﺔ ﺷﻌﺎﻋ&ﺎ ﻟﻤﺪ‬+,-‫ﻟﺬ‬/ ‫ﻷﻓﺔ‬/ ‫ﻧﺘﺎﺑﻊ ﺷﻔﺎء‬, ///////////////////////////////////////////////////////////////// !

Selection of shade for porcelain is done except:

1544.

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.

! 1545.

6 years child in routine examination, explorer

wedges ‫ﻧﺤﺸﺮ‬% &' ‫ ﺷﺒﻚ‬in the pit of 2nd molar,!other teeth free dental caries what is the management:! a fluoride gel application. b fissure sealant. c restore it with amalgam restoration. d- restore it with composite restoration.

( !!!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻦ ﺟﺪ‬%‫ﻷﺗ"ﺔ ﻣ'ﻤ‬% ‫ﺑﻌﺔ )ﺳﺌﻠﺔ‬,‫ﻷ‬% !‫ﻗﺮ‬$ ) 1546. a- Caoh. b- Formocresol.

The treatment of weeping canals!is:!

! !

1547.

Parotid malignancy shows perineural spread is seen as:

a. Warthon’s path.

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b. Ductal papilloma. c. Polymorphic adenoma. d. Adenoid cystic carcinoma. !

Salivary gland disease ( tumor ) with perineural invasion:

1548.

1. pleomorphic adenoma. 2. Adenocyctic carcinoma.

* Adenocyctic carcinoma = Adenoid cystic carcinoma.

1549. We want to do a maxillary PD to a patient using anterior-posterior strap, we want it to be rigid,we use: 1. gold. 2. cast gold. 3. co-cr. ////////////////////////////////////////////////////////////////

1550.

What is the form of local anesthesia when enters the nerve tissues: 1. Lipid soluble ionized form.! 2. Lipid soluble nonionized. 3. water soluble ionized. 4. water soluble nonionized.

1551.

physiolgical activity of local anesthesia:

a. Lipid solubility of unionized form. b. Water solubility of unionized form. c. Lipid solubility of ionized form. d. Water solubility of ionized form.

!

( !!!!!!!!!!!!!!!!!!!!!!!!!!!‫ﻦ ﺟﺪ‬%‫ﻷﺗ""ﻦ ﻣ'ﻤ‬% ‫ﻟ"ﻦ‬%‫ﻟﺴﺆ‬% !‫ﻗﺮ‬$ ) 1552. The degree of taper for crown preparation: a. 3 - 5. b. 15. * degree of taper = degree of convergency for crown preparation. !

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! !‫"ﺐ ( "ﺗﺴﺒﺐ!!ﻻ‬# ‫ﻘﺼﺪ‬$ ‫ ﺣﺸﻮ!!!ﻣﻠﻐﻢ!ﻣﻘﺎﺑﻠﺔ!ﻟﺤﺸﻮ!!!"!!ﻻ! )!(ﺒﻌﺎ‬.1553 :!‫ﻟﻌﻤﻞ‬%!‫ﻓﻤﺎ‬

. !‫ !ﺗﻐ""ﺮ!&ﻟﺤﺸﻮ‬1 . ‫ﻟﺴﻦ‬$!‫ !ﻗﻠﻊ‬2 . ‫ﻧ"ﺶ‬$‫ﺿﻊ!ﻓﺎ‬#! 3 . ‫ﻟﺔ‬#‫ﺿﻊ!ﻣﺎ"!!ﻋﺎ‬#! 4

‫ﺬ) )ﻟﺤﻞ ﺑﻌﺪﻣﺎ‬+‫ﻧﻨﺎ ﻧﻠﺠﺄ ﻟ‬1 )‫ﺪ‬2‫ﻟﻜﻦ ﻻﺣﻆ ﺟ‬9 ‫ﺢ‬2‫
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