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Worksheets

Prosthodontic Materials

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Alginate impression

material is________________?


a)

A. Non-elastic impression material

b)

Thermoplastic impression material

c)

More mucostatic than ZOE

d)

Less mucostatic than ZOE

2.

Dustless Alginate contains

a)

Polyethylene glycol

b)

Polypropylene glycol

c)

Either one of the above

d)

None of the above

3.

All of the

following statements about an alginate impression are true

EXCEPT________________?

a)

It should be rapidly displaced from the mouth

b)

It may exhibit fluid exudates on the surface as a result of imbibition of water

c)

It will take up water and expand if kept wet

d)

It will shrink as a result of syneresis

4.

The technique where alginate is used as tray material and agar is used as syringe material

a)

Sandwich technique

b)

Agar-Alginate technique

c)

Laminate technique

d)

Both b & c

5.

Impression is defined as.............of hard and soft tissues of the mouth

a)

Negative fold

b)

Negative design

c)

Negative replica

d)

Negative form

6.

Impression disinfectants are

a)

Iodophor

b)

Glutaraldehyde

c)

Sodium hypochlorite

d)

Phenol

e)

All of the above

7.

What kind of impression material is used

(a)  

8.

Identify this

a)

Green wax

b)

Green sticky wax

c)

Green inlay wax

d)

Green stick compound

9.

What material is this......

a)

Calcium hydroxide paste

b)

Zinc oxide paste

c)

Zinc oxide eugenol impression paste

d)

Zinc oxide eugenol cement

10.

Completely edentulous impression materials are

a)

Zinc oxide and green wax

b)

Impression compound and Zinc oxide eugenol impression paste,

c)

Impression compound and green stick compound

d)

Impression compound, green stick compound and Zinc oxide eugenol impression paste

11.

Setting reaction of Zinc oxide eugenol impression paste is

a)

Chelation

b)

Precipitation

c)

Gelation

d)

Exothermic

e)

Acidic

12.

The impression

material used to record the prepared areas on abutment teeth is______________?


a)

High viscosity elastomeric impression material

b)

Medium viscosity elastomeric impression material

c)

Low viscosity elastomeric impression material

d)

None of the above

13.

Syringe material is__


a)

High viscosity elastomer

b)

Medium viscosity elastomer

c)

Medium & low viscosity elastomer

d)

Low viscosity elastomer

14.
a)

periodontics

b)

pedodontics

c)

prosthodontics

d)

endodontics

15.
A clasp should always be supported by a rest
a)
depends on type of RPD
b)
depends on type of metal used
c)
depends on the abutment tooth
d)
depends on type of clasp
16.
Reciprocation should be provided where?
a)
diametrically opposite the retentive arm
b)
same level as the retentive arm
c)
at occlusal third
d)
at junction of occlusal and middle third
17.
the use of RPA is for the following except:
a)
in molar
b)
in mandibular canine
c)
in maxillary canine
d)
in premolar
18.

WHICH OF THE FOLLOWING IS NOT A PROSTHETIC ELEMENT ?

a)

a metal post

b)

a retainer

c)

an abutment

d)

a socket

19.

Which of the following expressions is incorrect?

a)

to replace a denture

b)

to smooth a denture

c)

to make a denture

d)

to do a denture

20.

Which of the expressions is incorrect?

a)

to harden the amalgam

b)

to smooth the tooth surface

c)

to replace a missing tooth

d)

to pour the socket