Dental Materials Quiz 1
1 / 50
When solid gets wet completely contact angle is______________?
2 / 50
KHN of enamel is close to______________?
3 / 50
Cross linking in denture base resin is contributed by_____________?
4 / 50
Which one of the following is the result of applying a load to a wire below its modulus of elasticity on a load deflection diagram ?
5 / 50
The impression with the least dimensional change upon disinfection is_______________?
6 / 50
Which component of zinc oxide-eugenol cement gives its strength ?
7 / 50
Which of the following cements is most irritant to pulpal tissues ?
8 / 50
A material which partially transmits light & partially scatters it________________?
9 / 50
Quartz is added to gypsum bonded investment to______________?
10 / 50
Which of the following is most important in strength ZOE_____________?
11 / 50
Which of the following do polycarboxylate and GIC have in common ?
12 / 50
Materials which has high compressive strength and low tensile strength is classified with property of________________?
13 / 50
The main purpose of adding metallic oxides in ceramic is________________?
14 / 50
Pitting of direct filling old restoration usually results from_________________?
15 / 50
Finer particle size of silica______________?
16 / 50
The type of spatula used to mix composite is________________?
17 / 50
Light cure system, side effect is____________?
18 / 50
Stainless steel is used mostly in dentistry_________________?
19 / 50
Which is true regarding lathe cut silver alloy_______________?
20 / 50
Gap between true end of casting ring and wax pattern should be______________?
21 / 50
Advantage of zinc phosphate over GIC is______________?
22 / 50
The dual cure cements should not be used with light transmitting prostheses thicker than____________?
23 / 50
Microstructure of cobalt chromium alloy in cast condition is______________?
24 / 50
Alginates are_____________?
25 / 50
The solvent flux used for base metal soldering is_______________?
26 / 50
Amalgam achieves 70% of the strength by____________?
27 / 50
Which of the following impression material is rigid ?
28 / 50
Ideal requirement of metal ceramic casting____________?
29 / 50
Which of the following absorbs maximum amount of water ?
30 / 50
A technique of combining reversible and irreversible hydrocolloid that could bond to irreversible hydrocolloid is known as________________?
31 / 50
The rapid decrease in tensile strength and increase in ductility of a wrought metal is seen in which stage of annealing ?
32 / 50
The latest method of curing denture base resins______________?
33 / 50
Which of the following is an example of a composite material ?
34 / 50
During soldering, the solidus temperature of the filler material should be_____________?
35 / 50
Which of the following properties of dental materials is time dependent_______________?
36 / 50
Which of the following cements is most biocompatible with pulp ?
37 / 50
Which of the following is correct glass transition temperature of Impression compound ?
38 / 50
The cavity varnish applied reduces post operative sensitivity in amalgam restoration by____________?
39 / 50
Maxwell ? Voigt Model is to determine________________?
40 / 50
pH of fully set zinc phosphate______________?
41 / 50
Quartz tungsten light cure device minimum output of energy should not be less than_____________?
42 / 50
Rapid removal of rubber impression with a single firm motion results in____________________?
43 / 50
Which of the following is used as surface hardener in Impression material ?
44 / 50
Crocus cloth is________________?
45 / 50
Increase in the residual mercury in silver amalgam filling can_____________?
46 / 50
Best material for duplicating cast is_______________?
47 / 50
Which of the following is correct regarding chemical setting of condensation silicone_______________?
48 / 50
Mercury is toxic because it_____________?
49 / 50
Which of the following is not true about elastomeric impression ?
50 / 50
The effects associated with cold working can be eliminated by a heat treatment called______________?
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