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Dental Materials Quiz 2

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Dental Materials Quiz 2

1 / 50

Which of the following silver amalgam alloy have the maximum strength________________?

2 / 50

The setting time of ZnPO4 cement can be retarded by_____________?

3 / 50

Hypersensitivity reactions like contact dermatitis can be caused by______________?

4 / 50

The process wherein two or more chemically different monomers, each with some desirable property, can be combined to yield specific physical properties of a polymer is known as_____________?

5 / 50

Tempering of steel cause________________?

6 / 50

In non-eugenol pastes the constituents are mixed in______________?

7 / 50

Which of the following is true about direct filling gold______________?

8 / 50

How soon after a moisture contamination does a zinc containing amalgam alloy start expanding________________?

9 / 50

Addition of large amounts of platinum to a casting gold alloy will________________?

10 / 50

Setting expansion is advantageous in__________________?

11 / 50

One bottle system of adhesive resins_____________?

12 / 50

The accepted polymer to monomer ratio for packing of polymethyl methacrylate resin is____________?

13 / 50

The sprue in wax pattern should be placed________________?

14 / 50

Thickness of luting cement is_____________?

15 / 50

Moisture contamination of amalgam can lead to_____________?

16 / 50

During polymerisation of acrylic resin, above what temperature benzoyl peroxide form freeradicals_______________?

17 / 50

The stiffness of a dental gold alloy is determined by its________________?

18 / 50

Which of the following cements is most kind to pulp ?

19 / 50

Composite resins in comparison to acrylic have_______________?

20 / 50

The temperature (in ?F) of the mixing slab for silicate cements should be_____________?

21 / 50

Ceramics fired to metals are processed by_______________?

22 / 50

Strain is defined as_____________?

23 / 50

Insufficient closure of the flasks during packing of denture base resin can result in_____________?

24 / 50

Hardening solutions are used with impression made of________________?

25 / 50

The best way to remove a hydrocolloid impression from the patient?s mouth is____________?

26 / 50

Ethoxy benzoic acid increases the strength and solubility of the cement______________?

27 / 50

The plasticizers used in polyether impression material is_______________?

28 / 50

Liquids which become more rigid as the rate of deformation increases is termed as_____________?

29 / 50

Percentage of zinc in ZOE cement is__________________?

30 / 50

Compared with noble metals, base metals show_______________?

31 / 50

Hardness number which does not depend on the ductility of metal_____________?

32 / 50

The commonly used laser for curing composite resin is______________?

33 / 50

Once triturated, the Dental amalgam should be condensed with in_____________?

34 / 50

Silicate cement is indicated in________________?

35 / 50

The restoration which shows percolation and shrinkage along the margins is_____________?

36 / 50

Frozen slab technique is applicable to_____________?

37 / 50

What is the working time of zinc polyacrylate cement ?

38 / 50

Apart from composites and ceramics, another material that could be copy milled easily and inexpensively is_________________?

39 / 50

A common electrolyte used for plating copper indirect dies is_______________?

40 / 50

Advantage of titanium over other base metal alloys_______________?

41 / 50

The pure form of gold used in dentistry is known as___________________?

42 / 50

The contraction of gold alloy on solidifying is approximately_____________?

43 / 50

Clogging of an abrasive wheel with debris causing reduction of abrasive action is called________________?

44 / 50

Powders of dental plaster and dental stone differ mainly in____________?

45 / 50

Which phase provides maximum strength in hardened mercury/silver alloy ?

46 / 50

The component in very minor quantity in stainless steel that changes the properties to a maximum level is____________?

47 / 50

The dental amalgam is most resistant to________________?

48 / 50

Impression plaster is_____________?

49 / 50

Most rigid elastomer is___________________?

50 / 50

One of the most important advantages of truly elastic impression material would be its capacity for______________?

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