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• max-mand relation when teeth in maximum intercuspation is called

.centric occlusion

• max-mand relation when condyle in most retruded unstrained position is called

.centric relation

• a main disadvantage of plaste as a bite registration material isa. rigidity

b.fluidity
c.accuracy
d.stability

•  main advantage of wax as a bite registration material is

a.accuracy
b.rigidity
c.stability
d.easy manipulation

• main disadv. of ZnO/E is

a.fluidity
b.stability
c.adhesion
d.setting time

• experiencing difficulty in seating the cast in bite record due to high resistance of the set material occur in

silicone material

• single-stop centric occlusal record is recorded using

.acrylic resin

• bite registration is used to fabricate

a.single die
b.1/2 arch
c.full arch
d. all

• process of unitng 2 surfaces or edges using fused metals is called

a.casting
b.soldering
c.welding

• while soldering metals / alloys , the solder should posses the :following except

a.sufficient fluidity
b.compressive strength
c.melting point > melting temp. of parent metal

• we can avoid solder oxidation using ......... zone

.reducing

• prosthesis fail to fit after soldering . this may be due to

a.improper relation between parts
b.improper proximal gap distance

1-which of the following develop a trust-able patient, doctor relation?
a-personal data
b-intraoral examination
c-medical history

2- .............. is a risk factor for doctor.
-syphilis

3-medical condition affect ttt plan?
a-previous radiotherapy
b-hemorhagic dis.
c-extreme age
d-all of the above

4-restorative history determine ......
-age of existing restorations and thus case prognosis.

5-complication due to anesthesia or extraction are noted through
....... .
-oral surgery history.

6-during maximum mand. opening,
normal interincisal distance is ...
a-50 

b-40 

c-35

7-,while normal intercuspal distance is .....
a-12 

b-9 

c- none

8-restricted mouth movement considered if .......
-interincisal distance <3.5 & intercuspal distance <9 .

9-in exaggerated smile,....
a- more than 25% do not show cervical 1/3 of upper central.
b- less than 25% do not show cervical 1/3 of upper central .
c-more than 50% do not show cervical 1/3 of upper central .

10- -ve space affected by all except...
a-missing teeth
b-fractured / poorely restored teeth
c-distemas
d-gingivitis

11-normal gingiva should be ...
a_ pale pink
b- stippeled
c-knife edge margin
d- pointed IDP
e- all

12-initial movement of post. teeth & subsequent movement from CR
(centric relation) to MI (max intercuspation) is called ......
- slide

13- during occ diagnosis, pt is guided to lateral movement to determine
absence or pre contact in which sequence
a- working then non_working side
b- non_working then working side

14-ease or difficulty of moving pt. jaw during guiding to hinge closure
& lateral movement called .....
-maneuverability

15-full mouth periapical survey is ....
-14 films.

16-full mouth periapical series used to asses all except
a-periapical area
b-edentulous area
c-root morphology
d-TMJ

17-dignostic mounted cast help in all except
a-pontic design
b-path of insertion
c-abutment design
d-crown root ratio

18-dignostic mounted cast does not help in all except
a-mobility
b-periapical area
c-gingival color
d-lingual occlusion

19-acurate stone reproduction on of arches, mounted on articulator is
a- master cast
b- diagnostic cast
c-refractory cast
d-study cast

20- In diagnostic cast :
occ gingival dimension of edentulous span determine ..........
-available space for pontic.
,while mesio_distal length determine.........
-liability of flexing
,& decreased curvature of edentulous span determine ....
_leverage of pontics on abutments.

21-estimation of disease course called ....
-prognosis .

22-dental charts show
a- caries
b-pulp vitality
c-color variations
d-all

23-wear facets number, size & distribution are shown in
a- intra oral
b-cast
because intaorally not all facets are visible nor their distribusion.

24-in axially inclined teeth, amount of reduction is determined using :
a- cast
b-radiograph
c-surveyor
d-all

25-in diagnostic cast , distribution & extent of edentulous areas are
measured to determine:
a-pontic design
b-flexing leverage
c-whether to use removable or fixed partial denture

26-over_erupted teeth, occ plane status elevated & amount of
reduction determined using:
a-radiograph
b-cast
c-all

27-diagnostic wax up give idea about..........
-final shape & form of the prosthesis

28-consequences of slide including:
a-increasd muscle toon
b-teeth mobility
c-wear facets
d- all

29-orthodontic movement may lead to .....
-root resorption that affect C/R ratio.
c.presence of foreign material on the fitting surface
d. all of the above

Endodontics MCQ

operative MCQ