Quiz about Interns Prosthodontics MCQs Exam

Question 1

For metal ceramic restoration, investment material of choice

Accepted Answer

Phosphate bonded investment

Answer

Gypsum Bonded Investment

Answer

Silicate bonded

Answer

Gas-Air torch

Question 2

Which of the following is used to remove investment from casting

Accepted Answer

Hydrofluoric Acid

Answer

Hydrochloric acid

Answer

Sulphuric acid

Answer

Nitric acid

Question 3

Rough poorly polished area of pontic causes

Accepted Answer

All of above

Answer

Halitosis

Answer

Discomfort

Answer

Chronic inflammation of ridge tissue

Question 4

Metal ceramic interface should be

Accepted Answer

at least 1.5 mm

Answer

At centric contacts

Answer

0.5 mm away from centric contacts

Answer

At least 1 mm away

Question 5

Minimum thickness of base metal alloy for metal ceramic

Accepted Answer

0.2mm

Answer

0.3mm

Answer

0.4mm

Answer

0.5mm

Question 6

Spacer thickness for custom tray in FPD

Accepted Answer

2-3mm

Answer

0.5-0.8mm

Answer

1-2mm

Answer

4-5mm

Question 7

Following medications can be used to control saliva except

Accepted Answer

Doxycycline

Answer

Atropine

Answer

Dicyclomine

Answer

Clonidine

Question 8

Zinc phophate cement acts by

Accepted Answer

Adding frictional resistance

Answer

Adhesion

Answer

Contacting the tooth

Answer

increasing the film thickness

Question 9

Dry cutting of non vital tooth should be avoided for

Accepted Answer

Prevent microfractures of enamel

Answer

Pulpul health

Answer

prevent dehydration of dentin

Answer

All of above

Question 10

If effort arm is 6 and resistance arm is 3, Mechanical advantage will be

Accepted Answer

2

Answer

0.2

Answer

18

Answer

9

Question 11

In distal extension partial denture case, C clasp with distal rest is

Accepted Answer

Class 1 lever

Answer

Class II lever

Answer

Class III lever

Answer

wheel and axle

Question 12

Posterior limitation of maxillary major connector

Accepted Answer

anterior to vibrating line

Answer

On the vibrating line

Answer

posterior to vibrating line

Answer

Always on soft palate

Question 13

The least desirable palatal connector

Accepted Answer

u-shaped

Answer

Palatal bar

Answer

complete palate

Answer

ant-post palate

Question 14

The primary purpose of rest

Accepted Answer

support

Answer

Retention

Answer

stability

Answer

Reciprocation

Question 15

Size of buccal vestibule depends on all except

Accepted Answer

Position of Pterygomandibular raphe

Answer

Contraction of Buccinators

Answer

Position of mandible

Answer

Amount of bone loss from maxilla

Question 16

Which impression material is not used in xerostomia

Accepted Answer

Zn-Oxide eugenol

Answer

Alginate

Answer

Plaster of Paris

Answer

Polyether

Question 17

Maxillary labial frenum contains

Accepted Answer

No muscle

Answer

levator anguli oris

Answer

Orbiculris oris

Answer

Buccinator

Question 18

The term temporomandibular disorder was coined by

Accepted Answer

Dwarkin and le Resche

Answer

Loiselle

Answer

Agerberg and Viklung

Answer

Mac Entee

Question 19

How many times does deglutition takes place in a day

Accepted Answer

500 times

Answer

200 times

Answer

300 times

Answer

400 times

Question 20

In normal cases most of retentive forces for CD comes from

Accepted Answer

Adhesive forces

Answer

Cohesive forces

Answer

Suction

Answer

Gravity

Question 21

Implant pitch is the

Accepted Answer

Distance between the threads

Answer

Diameter of implant collar

Answer

Morphology of healing screw

Answer

Type of abutment

Question 22

The instruments used to scale or probe implants should be of

Accepted Answer

Plastic and titanium only

Answer

Plastic only

Answer

Plastic stainless steel and titanium only

Answer

not be of plastic

Question 23

Ideal healing time for D1 and D2 bone is

Accepted Answer

3-4 months

Answer

2-3 months

Answer

4-6 months

Answer

6-8 months

Question 24

Thickness of opaque porcelain should not exceed

Accepted Answer

0.1 mm

Answer

0.2 mm

Answer

0.01 mm

Answer

0.02 mm

Question 25

Preferred root for post placement in Mandibular first molar is

Accepted Answer

Distal

Answer

Mesio Buccal

Answer

Palatal

Answer

Lingual

Question 26

Custom post is indicated when root has

Accepted Answer

divergent canal

Answer

straight canal

Answer

long canal

Answer

none of the above

Question 27

Which of the following component is used to shape the gingiva around Implant Restorations

Accepted Answer

Gingival Former

Answer

Cover Screw

Answer

Abutment

Answer

Impression Coping

Question 28

Osseointegration is described as a direct contact between

Accepted Answer

Implant & Bone

Answer

Bone & Connective tissue

Answer

Implant & Connective tissue

Answer

Implant & Abutment

Question 29

While adjusting occlusion, it is recommended to adjust which interferences first

Accepted Answer

Centric interferences

Answer

Protrusive interferences

Answer

Working side interferences

Answer

Non-working side interferences

Question 30

The masseteric notch at distobuccal border is due to

Accepted Answer

Action of masseter on buccinator

Answer

Action of buccinator on massseter

Answer

Palatoglossus on buccinators

Answer

Superior constrictor on buccinators

Question 31

Loop Connectors are used in a case of

Accepted Answer

Existing Diastema

Answer

Tilted Abutments

Answer

Grossly Carious teeth

Answer

Pier Abutments

Question 32

The direct retainer of choice when the principal abutment tooth has lost its periodontal support is

Accepted Answer

Multiple circlet clasp

Answer

Embrasure clasp

Answer

Ring clasp

Answer

C-clasp

Question 33

Indirect retainer is placed

Accepted Answer

As far as possible from fulcrum line

Answer

Near direct retainer

Answer

Near fulcrum line

Answer

Near edentulous area

Question 34

Endosteal Implants include all except

Accepted Answer

Transmucosal Inserts

Answer

Blade form Implants

Answer

Root form tapered Implants

Answer

Cylindrical Implants

Question 35

How much Relief needs to be provided for cement in a die

Accepted Answer

20-40 microns

Answer

10-20 microns

Answer

40-60 microns

Answer

60-80 microns

Question 36

Post retention and resistance is high in

Accepted Answer

Parallel/serrated

Answer

tapered post

Answer

parallel post

Answer

tapered/threaded

Question 37

The primary denture support area for a maxillary complete denture is

Accepted Answer

Horizontal part of hard palate

Answer

Rugae

Answer

Alveolar crest

Answer

Posteror palatal seal area

Question 38

This distance between the implant and the superior aspect of the inferior alveolar canal should be:

Accepted Answer

2 mm

Answer

1 mm

Answer

4 mm

Answer

3 mm

Question 39

The first step in surveying the cast for RPD is

Accepted Answer

Establishment of guiding plane

Answer

Establishment of undercuts for retention

Answer

Establishment of tooth contour for esthetics

Answer

Establishment of interferences for major connectors

Question 40

Non-anatomic teeth is used for

Accepted Answer

Flat ridge

Answer

Sharp ridge

Answer

Ridge with undercut

Answer

Well contoured ridge

Question 41

Lateral resection of the mandible distal to the cuspid falls under which class of Cantor and Curtis classification?

Accepted Answer

Class 2

Answer

Class1

Answer

Class 3

Answer

Class 4

Question 42

Definitive obturator is given after

Accepted Answer

3-4 months

Answer

3-4 weeks

Answer

1 year

Answer

6 weeks

Question 43

While recording vertical jaw relations

Accepted Answer

Head should be upright and unsupported

Answer

Patient should be lying in repose position

Answer

Head should be supported by the head rest

Answer

Head can be in any position

Question 44

Munsels system is used to

Accepted Answer

Define & Measure Color quantitatively

Answer

Define & Measure Color qualitatively

Answer

Evaluate Brittleness of metals

Answer

Evaluate Tensile strength of metals

Question 45

Porcelain denture teeth

Accepted Answer

Have a higher abrasion resistance than gold

Answer

Have a higher coefficient of thermal expansion than acrylic teeth

Answer

Have a lower abrasion resistance than enamel

Answer

Should be used where the inter dental clearance is small

Question 46

Permanent deformation of long span metal bridge
structures at porcelain firing temperatures under the
influence of mass of the prosthesis is an example of

Accepted Answer

Sag

Answer

Creep

Answer

Flow

Answer

Thixotropy

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