Dental Materials Quiz 12

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Dental Materials Quiz 12

1 / 68

Fins and spines on the casting is seen due to_______________?

2 / 68

Well premeasured capsules of amalgam can release mercury vapour during_______________?

3 / 68

In spherical alloys as compared to lathe cut____________?

4 / 68

Benzoin methyl ether in a polymer indicates that they may be cured in the presence of________________?

5 / 68

The best pickling solution for gypsum bonded investment is_______________?

6 / 68

Impression compound is characterized by all of the following except_______________?

7 / 68

Impression techniques are used for recording________________?

8 / 68

Casting flux is used to_______________?

9 / 68

The opacity in ceramics is achieved by adding_______________?

10 / 68

Immediate pouring of impressions is most critical in_____________?

11 / 68

What is the working time of amalgam?

12 / 68

A material behaves in certain ways above and below the proportional limit on a stress strin curve, which of the following is correct______________?

13 / 68

Gypsum bonded investment should not be heated over______________?

14 / 68

To make the vinyl Polysiloxane hydrophilic the following is added_______________?

15 / 68

Outstanding clinical performance of dental amalgam restoration is related to its____________?

16 / 68

Setting time of ZOE is best controlled by______________?

17 / 68

The main ingredient in dental plaster in_______________?

18 / 68

Eugenol may be replaced in the zinc oxide eugenol cement by______________?

19 / 68

Most preferable cement for temporary restoration______________?

20 / 68

Which of the following fuel gases is the best choice of heat source to carry out soldering process ?

21 / 68

Which of the following impression material is elastic________________?

22 / 68

Agar is prepared from_______________________?

23 / 68

Which of the following cements have anti cariogenic properly________________?

24 / 68

Opaque porcelain________________?

25 / 68

Dispersion of crystalline phase to strengthen ceramics results in_________________?

26 / 68

The strength of gypsum prouducts is generally expressed in terms of______________?

27 / 68

The most toxic form of mercury is_________________?

28 / 68

Amalgam means_____________?

29 / 68

Which of the following cements is contraindicated in mouth breathers_______________?

30 / 68

Which of the following is true about Agar hydrocolloid impression material ?

31 / 68

For dental amalgam, the elastic modulus and tensile strength is______________?

32 / 68

Etchant preferred in gel from than in liquid form________________?

33 / 68

Property of the material, which describes the resistance to abrasion, is_________________?

34 / 68

Which of the following zones is used for melting alloy during casting______________?

35 / 68

Radio opacity to composite resins is rendered by_______________?

36 / 68

Porcelain is best fired__________________?

37 / 68

The ability of the base to resist occlusal forces and to support the restoration is affected by_______________?

38 / 68

If resin is packed in sandy stage what will be seen in the processed denture ?

39 / 68

Which of the following increases castability of base metal alloys________________?

40 / 68

Most mucostatic among the following_____________?

41 / 68

The linear solidification shrinkage of Type IV Ni-Cr based alloys is_______________?

42 / 68

No trail closure is necessary with which one of the technique during denture fabrication_____________?

43 / 68

Average particle size of powdered gold is________________?

44 / 68

About zinc oxide eugenol all are true except_______________?

45 / 68

Lenolin is added is ZOE paste to______________?

46 / 68

Function of carnauba wax_________________?

47 / 68

Hysteresis in a hydrocolloid gel is______________?

48 / 68

Gelation temparature of agar is between________________?

49 / 68

Pickling________________?

50 / 68

Cleaning of base metal alloy is done by______________?

51 / 68

In type II gold alloys _______ Karat gold is used?

52 / 68

Condensation shrinkage of porcelain during firing depends on__________________?

53 / 68

The maximum carbon content of steel used in dentistry is__________________?

54 / 68

Which of the following bur is used in the preparation of cavity restored with porcelain fused to metal ?

55 / 68

To cure a heat cure resin, a proper heating cycle is necessary_____________?

56 / 68

Acrylic (cold cure)______________?

57 / 68

Which of the following component acts as an accelerator in ZOE impression paste ?

58 / 68

A material which is a mixture of two different materials and its properties are_____________?

59 / 68

Crucible indicated for casting base metal alloys is______________?

60 / 68

Suck back porosity is due to_________________?

61 / 68

Which one of the following increase the strength and reduce viscosity of agar hydrocolloid impression material_____________?

62 / 68

Dental porcelains are crystalline materials of________________?

63 / 68

Residual monomer content of chemically activated resins is______________?

64 / 68

One of the claims for the superiority composite resin restoration over silicate cement restorations is that the resin restorations_____________?

65 / 68

Porosity in porcelain can be prevented by_______________?

66 / 68

A patient who has had a recent amalgam filling in the upper teeth has a gold filling in the lower teeth, the patient complains of pain. The reason for this can be mainly_____________?

67 / 68

Vulcanization refers to the setting of__________________?

68 / 68

VLC resins are also called as______________?

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