mcq in rpd

8/18/2019 MCQ IN RPD

1/10

1-Plates, minor connectors, guiding plates, and proximal

contacts of natural teeth all contribute to

A.Reciprocation

B.Esthetics

C.Good oral hgiene

!. "he #nited $und

E.Rigidit

%-&hich of the follo'ing is(are true concerning )enned*s(

Applegates rules+

1.)enned class 1 inoles bilateral edentulous areas posterior to

the natural teeth 'hile a Class has a unilateral edentulous

area posterior to the natural teeth.

2.)enned Class al'as has one unilateral edentulous area

'ith teeth posterior to it. A Class / has a single edentulous

area crossing the midline and anterior to natural teeth.

3. 0ou ma hae up to % mods onl in a )enned Class / case.

4.f a second or third molar is missing and is not to be replaced it

is not considered in Applegates rules. f to be replaced it 'ill

determine the class.

5.2odi3cations are those areas other than those that determine

the classi3cation and are designated b their number.


2/10

a)All the aboe are trueb)4one are truec) 1,%, are trued)1,/,5 are true

e),/,5 are truef) 1, / are true.

-After sureing our diagnostic casts ou determine our RP!

design and the necessar alterations. "he design is then dra'n on

the cast and ou are no' read to ma6e tooth modi3cations. n

'hat se7uence 'ill ou follo'+

A.8eights of contour ( guiding planes ( rest seats ( impression

B.Guiding planes( impression ( heights of contour ( rest seats

C.Guiding planes ( heights of contour ( rest seats ( impression

!.Guiding planes( heights of contour ( impression ( rest seats

/-&hat is the main purpose of a cast distal extension posterior

metal stop+

A.Proides for a more rigid RP! frame'or6.

B.ncreases oerall retention of the RP! to resist displacement.

C.Proides a positie apical seat 9tissue stop: for the RP! in

function.

D.Proide stabilit of the distal extension frame'or6 during

acrlic processing.


3/10

5-&hich one of the follo'ing is true regarding components of

upper remoable partial denture+

A.2a;or connectors should be >>>>>>>>>>>>>>>>> cast?

A.Reformed

B.Refractor

C.Reformatted

D.Bloc6ed out

@- "he channel 'hich allo's molten metal to


4/10

C.Peanut

D.prue

8-Which of the following majo clinical a!!ointment" fo

con"t#ction of an $%D can be "afel& "'i!!ed(

A.!iagnosis and treatment planning

B.2outh preps and 3nal impressions

C. Post-preparation endodontic testing

D.!elier

--bar is most often located in .1D undercut on the

A.Cemento-enamel ;unctionB. Greatest distal curature of the buccal surfaceC.2esio-buccal line angleD. !isto-buccal line angle

1-!islodging moement of a RP! is resisted b

A.tabiliing claspsB. 2echanical retainersC.Reciprocating claspsD. !enture base retainers. !enture base mesh

11-A master cast is placed in the cast holder and aligned at the

ero degree tilt. A .% Fundercut is found on the mesiolingual

of the mandibular right second molar. "ilting the cast to the

anterior 'ill

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A.ncrease the undercutB.!ecrease the undercutC.4ot aect the undercutD.4one of the aboe. "he cast should not be tilted since all

RP!*s are designed at the ero degree tilt.

1%- "he rests of a RP! must be free to moe in function 9except

gingiall: in )enned Class

A., , HB. , , , HC., , HD. , , H

. 4one. Rests should neer moe in function

1-All of the follo'ing are sites of arbitrar bloc6out of the

mandibular RP! master except

A.All gingial creicesB. Gross tissue undercuts situated belo' areas inoled in design of

denture frame'or6

C.Iabial and buccal tooth and tissue undercuts not inoled indenture design

D. "issue undercuts to be crossed b origin of bar clasps.All of the aboe are sites of arbitrar bloc6out

1/-All of the follo'ing features describe the proximal

plate(guiding plate area needed for proper functioning of the

RP clasp assembl, except

A.A guiding plane is prepared on the distal surface of theabutment tooth in the occlusal one-third

B. "he guiding plane is approximatel % mm in heightocclusogingiall

C.An undercut should exist belo' the guiding plane to permitmoement of the proximal plate

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D. "he proximal plate contacts approximatel 1-% mm of theocclusal portion of the guiding plane

. "he proximal plate contacts approximatel 1 mm of thegingial portion of the guiding plane

15-n distal extension remoable partial denture, the ;a' relations

should be recorded >>>>>>>>>>>> the secondar impression is

made and >>>>>>>>>> the frame'or6 in place.

A.beforeJ 'ithB.beforeJ 'ithoutC.afterJ 'ithD.afterJ 'ithout

. asJ 'ith

1*-+he onl& indication fo #"e of bo, "ha!e occl#"al e"t in

A. class

B. class

C. class modi3cation

!. class

E. class H

1-inal im!e""ion fo $%D can be made at

A. At impression stage 'ith custom tra

B. At frame'or6 stage

C. At delier stage

!. All of aboe

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18-D#ing de"igning diect etention fo #!!e $%D cla""

/// and &o# fo#nd that the !o"teio ab#tment wa"

"e0eel& tilted what i" the mo"t "ati"facto& o!tion

A. 2a6e a ne' undercut on the tooth

B. 2a6e telescopic cro'n on abutment

C. Ring clasp

!. Extraction of abutment

E. Krthodonticall abrightening tooth

1-%atient who ha" #n-modied cla"" // enned&cla""ication with good !eiodontal condition and nocaio#" le"ion the be"t cla"! to #"e on the othe "ide i"

A. Reciprocal clasp

B. Ring clasp

C. Embrasure clasp

!. Gingiall approaching clasp

E. 4o need to clasp at dentate side

2-6#iding !lane" !e!aed on enamel "#face" "ho#ld be

A. $lat occlusogingiall

B. Rounded occlusogingiall

C. hould not parallel to long axis of abutment

!. hould not prepared

21- +he "eat fo occl#"al e"t on ab#tment "ho#ld be

A. Kn proximal surface of abutment


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B. Kn the marginal ridge at to long axis of abutment

C. Parallel to pontic

!. Parallel to long axis of the tooth

23- Beading "ho#ld ha0e a de!th and width of a!!o,imatel&

A. .%5 to .5 mm

B. .5 to 1 mm

C. 1 to 1.5 mm

!. 1.5 to % mm

E. % to %.5 mm

24- o tooth "#!!oted !atial dent#e" dent#e ba"e7ange i" 'e!t

A. Lust short of re


9/10

2*- +i""#e "to!" i" made b& emo0ing a!!o,imatel&

A. 1 s7uare mm of relief 'ax

B. % s7uare mm of relief 'ax

C. = s7uare mm of relief 'ax

!. / s7uare mm of relief 'ax

E. 4on of aboe

2- inimal width of ni"h line of $%D i"

A. .5 mm

B. 1mm

C. 1.5 mm

!. % mm

E.%.%5 mm

28- D#ing wa,ing #! of mandib#la majo connecto itm#"t be c#t at

A. /5 degree

B. degree

C. Kbtuse angle

!. 4on of aboe

2- $ing cla"! i" mo"t often indicated in

A. "ipped canine


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B. "ipped incisor

C. "ipped molar

!. #ntilted canine

E. An of them

3- Which of the following i" an indication fo an $%/(

A. Ad;acent to a free distal extensionB. Guide plane onl on the distalC. Rest area onl on the mesial occlusal!. All of the aboe are indications.

mcq in rpd

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