1000 Mcqs _ Prosthodontics Plus March&September Mcqs (1)

1000 MCQS – PROSTHODONTICS Plus March & September 2014 MCQs ! Pr"sth"#"!tcs $4% hat s the purp"se "' ma(!) a rec"r# "' pr"trus*e relat"! a!# +hat 'u!ct"! #"es t ser*e a'ter t s ma#e A. To register the condylar path and to adjust the inclination of the incisal guidance. B. To aid in determining the freeway space and to adjust the inclination of the incisal guidance. C. To register the condylar path and to adjust the condylar guides of the articulator so that they are equivalent to the condylar paths of the patient. D. To aid in establishing the occlusal vertical dimension and to adjust the condylar guides of  the articulator so that they are equivalent to the condylar paths of the patient. $,% The ma! 'act"r c"!tr"ll!) a #ecs"! t" !crease the "cclusal he)ht "' teeth '"r e-te!s*e "ral rec"!struct"! rec"!struct"! s +hether A. The inter occlusal distance will be physiologically acceptable after treatment B. There will be sufficient tooth bulk in the abutment teeth for proper retention of the crowns C. At least two third of the original alveolar process will remain for adequate periodontal support D. The aesthetic appearance of the patient will improve sufficiently to warrant the planned reconstruction $.% I! pla!!!) a!# c"!struct"! "' a cast metal partal #e!ture the stu#/ cast A. facilitate the construction of customspecial trays B. minimi!e the need for articulating C. provide only limited information about inter ridge distance" which is  best assessed clinically D. can be used as a working cast when duplicating facilities are not available $$% Per"#"!tal #ama)e t" abutme!t teeth "' partal #e!ture +th #stal e-te!s"! ca! best be a*"#e# b/ A. Applying #tressbreakers B. $mploying bar clasps on all abutment teeth C. %aintaining tissue support of the distal e&tension D. Clasping at least two teeth for each edentulous area $. %aintaining the clasp arms on all abutment teeth at the ideal degree of tensio $% hch "' these muscles ma/ a''ect the b"r#ers "' ma!#bular c"mplete #e!ture A. %entalis B. 'ateral pterygoid C. (rbicularis oris D. 'evator angulioris $. Temporal 0% a+ relat"! "' a! e#e!tul"us pate!t has bee! establshe#% The ma-llar/ cast has bee! m"u!te# "! a! artculat"r +th"ut a 'ace b"+% "u #ec#e t" !crease the "cclusal *ertcal #me!s"! b/ 4mm ths +ll !ecesstate !ecesstate A. (pening the articulator )mm B. A new centric relation to be recorded C. A change change in the condylar guide settings D. An increase in the rest vertical dimension 1% 3"ll"+!) e-tract"! "' the m"lar teeth

A. The ridge height is lost more from the ma&illa than from the mandible B. The ma&illary ridge will get more bone lost from the palatal aspect than the buccal C. The mandibular arch is relatively narrower than the ma&illary arch D. Compared with the pre*resorption state" the mandibular ridge will lose more bone from the lingual aspect than the buccal one. 2% hch "' the '"ll"+!) s a ma5"r #sa#*a!ta)e t" mme#ate c"mplete #e!ture therap/ A. Trauma to e&traction site B. +ncreased the potential of infection C. +mpossibility for anterior try in D. $&cessive resorption of residual ridge 100% hat s the ma! purp"se "' us!) Stress brea(ers A. To distribute the load between teeth and ridges B. To distribute the load between the clasps and the face end of the saddle C. +t relieves the abutment tooth of occlusal loads that may e&ceed their physiologic strength 106% hch s m"re rete!t*e '"rm '"r a!ter"r br#)e A. , partial veneer crown B. Class - inlay C. inlay -eneer  D. Class +++ inlay with pins

125. Patient Patient with with class II division division II; the lateral lateral incisor incisor is missing. missing.  You  You want to make make a fxed bridge which o the ollowing is suitable A. Rock Rocket et bridge using using central central incisor incisor as abutment abutment B. Cantilever Cantilever using using central central incisor incisor C. Fixed ixed bridge using using the central incisor incisor and bicuspid bicuspid 12!. "hen re#airin re#airing g a racture racture o lower com#lete com#lete dentur denture. e. "hich statement is correct A. Self curing curing will will distort distort the the dentur denture e B. Cold curing will not be be strong strong enough because of small area area of attachment C. There There is a possibilit possibilit of of occlusal occlusal disharm disharmon on 141. The setting setting expans expansion ion of casting casting investmen investmentt is approximately  A. ! to to !. !."# B. !." !." tto o !.$# !.$# C. !.$ !.$ to "# %. "." "." to ".&# ".&# 1$2. %he contra contraction ction o o gold allo&s allo&s on on solidi&ing solidi&ing is a##roximatel& A. !.$# B. '.$# C. ".(!# %. )# 1$'. %he un(#ol&me un(#ol&meri)ed ri)ed monome monomer r in *el(cure *el(cured d resin is a##roximatel&++ A. !.$# B. '.$# C . $# %. "!#

A. The ridge height is lost more from the ma&illa than from the mandible B. The ma&illary ridge will get more bone lost from the palatal aspect than the buccal C. The mandibular arch is relatively narrower than the ma&illary arch D. Compared with the pre*resorption state" the mandibular ridge will lose more bone from the lingual aspect than the buccal one. 2% hch "' the '"ll"+!) s a ma5"r #sa#*a!ta)e t" mme#ate c"mplete #e!ture therap/ A. Trauma to e&traction site B. +ncreased the potential of infection C. +mpossibility for anterior try in D. $&cessive resorption of residual ridge 100% hat s the ma! purp"se "' us!) Stress brea(ers A. To distribute the load between teeth and ridges B. To distribute the load between the clasps and the face end of the saddle C. +t relieves the abutment tooth of occlusal loads that may e&ceed their physiologic strength 106% hch s m"re rete!t*e '"rm '"r a!ter"r br#)e A. , partial veneer crown B. Class - inlay C. inlay -eneer  D. Class +++ inlay with pins

125. Patient Patient with with class II division division II; the lateral lateral incisor incisor is missing. missing.  You  You want to make make a fxed bridge which o the ollowing is suitable A. Rock Rocket et bridge using using central central incisor incisor as abutment abutment B. Cantilever Cantilever using using central central incisor incisor C. Fixed ixed bridge using using the central incisor incisor and bicuspid bicuspid 12!. "hen re#airin re#airing g a racture racture o lower com#lete com#lete dentur denture. e. "hich statement is correct A. Self curing curing will will distort distort the the dentur denture e B. Cold curing will not be be strong strong enough because of small area area of attachment C. There There is a possibilit possibilit of of occlusal occlusal disharm disharmon on 141. The setting setting expans expansion ion of casting casting investmen investmentt is approximately  A. ! to to !. !."# B. !." !." tto o !.$# !.$# C. !.$ !.$ to "# %. "." "." to ".&# ".&# 1$2. %he contra contraction ction o o gold allo&s allo&s on on solidi&ing solidi&ing is a##roximatel& A. !.$# B. '.$# C. ".(!# %. )# 1$'. %he un(#ol&me un(#ol&meri)ed ri)ed monome monomer r in *el(cure *el(cured d resin is a##roximatel&++ A. !.$# B. '.$# C . $# %. "!#

144. A volume shrinka shrinkage ge of methyl methyl meta cyrelate cyrelate monomer monomer when when is polymerized:** A. "'# B. "$# C . " *# %. '"# 14.% Ol "r +ater "! mpress"! '"r treatme!t casts causes A. An increase of the quality B. /o alteration C. A decrease of the quality D. Bubbles on the cast $. /one of the above 14$% hat s Path "' I!sert"! A. The movement of the appliance from the points of initial contacts to path of final rest  position B. The movement of the appliance from the points of rest position until it is not in contact with teeth 14% hat s Path "' Rem"*al A. The appliances movement from the rest position to the last contacts of its rigid parts with the supporting teeth B. The movement of the appliance from the points of initial contacts to path of final rest  position 170% he! c"rrect"! preparat"! preparat"! '"r re c"!t"ur!) "' "cclusal sur'ace s t" be apple#% 8r!#!) "!l/ "' the a#5uste# sur'ace A. #hould not be felt flat B. 0equire a flat crown C. 0equire no contact with adjacent teeth D. #hould be felt flat $. /one of the above 171% T" "bta! a #esre# pr"5ect"! "' "cclusal l"a#s9 the 'l""r "' the "cclusal rest sh"ul# A. Be conve& B. #lope from the marginal ridge towards Contact11 of abutment C. #lope from Contact11 of abutment towards the marginal ridge D. Be concave $. Does not slope from the marginal ridge towards Contact11 of abutment 2. /one of the above 172% The tra!s'er "' stress b/ Te!sle :ct"! empl"/s T% react"!;a pr"cess that +th! lmt A. 2ails to promote bone growth B. romote bone growth and maintenance C. 2ails to promote maintenance D. /one of the above 176% hch "' the '"ll"+!) arrears C:N NOT be #eterm!e# b/ sur*e/ a!al/ss "'  partall/ e#e!tul"us cast A. Areas to be revealed as blocked out to properly loca11 0igid parts of a frame work  B. Areas to be shaped to properly loc11 0igid parts of framework  C. Areas used for guideline planes D. Areas used for retention $. Areas used for support

2. Depth of rest seats 174% I! partal #e!tures the )u#el!es ard in room temperature C. >igher @ow in room temperature 4,$% hch mpress"! materal sh"ul# NOT be (ept ! +ater +th! "! h"urA amular notch 742% hat s the #eal le!)th '"r a p"st ! p"stc"re ! a! e!#"#"!tcall/ treate# t""thA A. ;F of the tooth length B. G of the tooth length C. and burnish crown margins 5,?. In surve&ing; calibration o examiners data is im#ortant because A. 4t reduces the errors in gathered data. ,.$% I! 'ull #e!tures p"r"st/ ! the m"st thc(est area s #ue t"A A. @aseous porosity B. #hrinkage porosity

!33. "hat is %4< about 8hrome(8obalt #artial denture A. 5o immersion of dentures in hpochlorite ,25. %erminal Ainge @xis can be obtained b& A. Face bow B. Dinematic face bow C. Articulator .6$% C"mpare# t" #e!tal plaster all #e st"!esA A. 0equire less gauging water  B. 0equire more gauging water  C. 0equire the same quantity of gauging water  D. Are beta*hemihydrate $. /one of the above .6% The MOST e''ect*e ma!!er t" pr"#uce a har# sur'ace "! a cast s b/A A. $mploy as much water as possible on mi&ing B. $mploy as little water as possible on mi&ing C. Adding ;H of bora& to the mi& D. Adding calcium tetraborate $. /one of the above .40% he! #r/ cast s mmerse# ! +ater saturate# +th calcum sulphateA A. There is contraction

B. There is negligible e&pansion C. There is definite e&pansion D. There is no change $. /one of the above .41% 3us"! temperature "' mpress"! c"mp"u!# sh"ul# "ccurA A. Below mouth temperature B. Above mouth temperature C. As of the skin temperature D. At the room temperature $. /one of the above .42% The 'l"+ "' the '"ll"+!) perce!ta)e s all"+able '"r mpress"! c"mp"u!# t/pe IE at the "ral temp "' 6.L A. IH B. 2 mal"cclus"!9 +hch br#)e #es)! +"ul# be c"!tra!#cate# '"r a mss!) lateral upper !cs"r a. Cantilever bridge  b. %aryland bridge c. %etal bridgework  10% hch s the best ca!tle*er br#)e #es)! '"r mss!) ma-llar/ ca!!e :butme!t "! a. Both premolars  b. 'ateral and central incisor  c. 'ateral incisor  d. 2irst premolar  11% hat s the best +a/ t" ceme!t a Mar/la!# br#)e a. @+C  b. 0esin c. 5igh compression restorative resin

Rem"*able Partal Pr"sth"#"!tcs 1% hat s true ab"ut partal #e!tures a. They cause immediate changes in the oral plaque behaviour   b. /ight wearing of dentures reduces plaque accumulation c. 0elieving the gingival area reduces gingival enlargement 2% The bt!) l"a# "' #e!ture base t" tssues c"mpare# t" teeth sA a. Ten times more  b. Ten times less c. $qual 6% :! "cclusal appr"ach!) clasp TIPA a. #hould occupy a predetermined undercut  b. Contact the tooth under the survey line c. 0igid 4% I! the c"!struct"! "' partal #e!tures the sur*e/"r s !"t use# t"A a. Contour the wa& as part of the fabrication of the working cast  b. 'ocate the guide planes

c. Determine the location of indirect retainers d. +dentify any undesirable undercuts 7% hch "' the '"ll"+!) #"es !"t a''ect the elastct/ "' rete!t*e clasp a. 'ength of the arm  b. The cross section shape c. The material used d. The undercut area ,% : partal #e!ture that seats "! the master cast but 'als t" seat c"rrectl/ ! the m"uth s a result "'A a. Contraction of the metal framework during casting  b. +nsufficient e&pansion of the investment material c. Distortion of impression d. 2ailure to block out unwanted undercuts .% I! rem"*able partal #e!tures9 the pr!cple "' a! !#rect reta!er s that tA a. #tabilises against lateral movement  b. revents setting of major connectors c. 0estricts tissue movement at the distal e&tension base of the partial denture d. %inimises movement of the base away from the supporting tissue $% Sur*e/"r s !"t !#cate# '"r +hch "!e "' the '"ll"+!) a. To determine the place of the indirect retainer   b. To determine direct retention c. To establish the line of ma&imum contour  % Re)ar#!) the tp "' the rete!t"! arm "' the reta!er ! partal #e!ture9 +hat s true a. +t should engage the predetermined undercut  b. +t should engage the ma&imum undercut available c. +t should not engage any undercuts

C"mplete Pr"sth"#"!tcs 1% I' aesthetc s !"t a c"!cer!9 +hat s the 'rst th!) t" #" t" treat s"re!ess u!#er #e!tures a. Take the denture off for a week   b. 0inse the denture in nystatin c. Apply tissue conditioner 

2% 3ra!('"rt pla!e e-te!#s 'r"mA a. 5ori!ontally from sella to nasion  b. Ala of the nose to tragus c. 5ori!ontally from point on superior aspect of  e&ternal auditory meatus to orbitale 6% hch "' the '"ll"+!) muscles ma/ a''ect the b"r#ers "' a ma!#bular c"mplete #e!ture a. %entalis  b. 'ateral pterygoid

c. (rbicularis oris d. 'evator oris 4% a+ relat"!s '"r e#e!tul"us pate!t ha*e bee! establshe#% The ma-llar/ cast has bee! m"u!te# "! the artculat"r +th"ut 'aceb"+ a!# /"u #ec#e t" !crease the "cclusal *ertcal #me!s"! b/ 4 mm% Ths +ll !ee#A a. (pening the articulator ) mm  b. A new centric relation record c. Changes in the condylar guide settings d. +ncrease in the vertical dimension 7% hch "' the '"ll"+!) +ll NOT be use# ! #eterm!at"! "' *ertcal #me!s"! a. Aesthetics  b. honetics c. @othic arch tracing d. #wallowing ,% Shape a!# rre)ulart/ "' r#)e e#)e ! a pate!t +h" !ee#s 'ull #e!ture9 +hat s /"ur treatme!t a. Do not proceed with treatment  b. %inimal surgical intervention c. +mplant surgery .% hat s mp"rta!t ! #eterm!!) the term!al h!)e a-s a. inematic face bow  b. >a& bite registry c. >orking casts in dye stone $% hat s the a#*a!ta)e "' "*er#e!ture ! c"mpars"! t" 'ull #e!ture a. roprioceptors  b. #implicity of elaboration c. Aesthetics % 3alure "' #e!ture s c"mm"!l/ #ue t"A a. +ncreased occlusal plane  b. Decreased vertical dimension c. +nsufficient denture bearing area d. >rong freeway space 10% D''use pa! u!#er a c"mplete ma!#bular #e!ture s m"st l(el/ cause# b/A a. (vere&tension of the denture flange  b. (cclusal plane too high c. (cclusal face height too great d. %ental foramen near crest of ridge