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Dental Materials Quiz 9

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Dental Materials Quiz 9

1 / 50

Dicor restoration is_______________?

2 / 50

Porcelain denture teeth________________?

3 / 50

Binder in phosphate bonded investment is______________?

4 / 50

The largest component of amalgam alloy is_____________?

5 / 50

Water powder ratio of dental stone and plaster is respectively_________________?

6 / 50

Modiffiers are added to gypsum mainly to_______________?

7 / 50

NiTi alloy have_______________?

8 / 50

Placing cast under tap water is to be avoided as______________?

9 / 50

High copper dental amalgams are superior to other amalgams because high copper dental amalgems______________?

10 / 50

Mechanical properties of Cp Titanium are similar to alloys_____________?

11 / 50

The base paste of the condensation poly sillicone has a low molecular weight dimethyl siloxane with a terminal-group_______________?

12 / 50

Cohesion of gold foil is an example of______________?

13 / 50

Mouth temperature waxes are_______________?

14 / 50

The maximum shrinkage during firing proces in ceramic occurs in__________________?

15 / 50

Etching depth after 30 sec for orthodontic bracket with orthophosphoric acid is_________________?

16 / 50

Acrylic resins were first introduced as a denture base material in______________?

17 / 50

When restoring a tooth with resin material, acid etching can do all of the following except______________?

18 / 50

Which of the following cast gold alloys is used for fabricating partial denture frameworks______________?

19 / 50

When selection the colour of cement to use for cementing a porcelain jacket crown, the powder being tested is best mixed with______________?

20 / 50

The inlay wax most commonly used for direct technique_____________________?

21 / 50

Advantage of minimum mercury technique or Eames technique is all Except________________?

22 / 50

Tear strength for impression material is highest for__________?

23 / 50

The average life of silicate cement restoration is______________?

24 / 50

Which of the following has the highest modulus of elasticity ?

25 / 50

The higher the Hg alloy ratio in dental amalgam________________?

26 / 50

Hydrocolloid material, show all except______________?

27 / 50

Subsurface porosity is due to_____________?

28 / 50

Amalgam restorations give the best clinical service when the residual mercury content is_______________?

29 / 50

Who was the first person to introduce cast inlay restoration into dentistry ?

30 / 50

All of the following statements about cast cobalt alloy are true EXCEPT_____________?

31 / 50

Mercury rich condition in a slow setting amalgam alloy system in a resoration in______________?

32 / 50

Alginate impression material is similar to Agar-agar impression material in the following respect________________?

33 / 50

What is the polymerization shrinkage if 3:1 powder: liquid ratio is used____________?

34 / 50

Space lattice refers to_______________?

35 / 50

Fluoride rich materials include ?

36 / 50

The water powder ratio of alginate is______________?

37 / 50

Wax pattern is ideally invested immediately to decrease the dimensional changes caused by_______________?

38 / 50

Which of the following is not affected by saliva ?

39 / 50

Silver plated dyes use an electrolytic bath of_______________?

40 / 50

The main ingredient of inlay wax is__________________?

41 / 50

Shape memory in NiTi is because of stress induced form__________________?

42 / 50

Impression plaster containing potato starch is called______________?

43 / 50

Chemical tempering in porcelains is done to interrupt crack propagation by______________?

44 / 50

Rubber base impressions are poured immediately as they_______________?

45 / 50

The most important disadvantage of acrylic denture base is_______________?

46 / 50

All of the following statements about the differences between self-polymerizing acrylic resins and heat-cured resins are true EXCEPT______________?

47 / 50

Rough surface of elastomeric impression results from_______________?

48 / 50

Austenite is an alloy of iron of and carbon with the iron in______________?

49 / 50

The basic constituent of reversible hydrocolloid impression material is________________?

50 / 50

Adequate mixing of mercury is indicated by_______________?

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