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Dental Materials Quiz 4

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Dental Materials Quiz 4

1 / 50

What is the disadvantage of using composites as restorative material ?

2 / 50

Which cement is irritating to the pulp ?

3 / 50

Pyroplastic flow of porcelain is due to___________________?

4 / 50

The melting point of silver is_____________?

5 / 50

The ideal temperature of water bath for softening fluid wax is about________________?

6 / 50

What fraction of inhaled mercury vapors retained in the body ?

7 / 50

By product of condensation reaction between silicone base and alkyl silicate in presence of tin octate_______________?

8 / 50

Which of the following releases single wavelength of energy ?

9 / 50

Dustless alginate is produced by______________?

10 / 50

Macromolecules in Dental Resin is attached by______________?

11 / 50

Type I and Type II zinc oxide impression paste differ with respect to_______________?

12 / 50

Which of the following decrease with strain hardening______________?

13 / 50

Cause of expansion in zinc containing amalgam is_____________?

14 / 50

Inorganic phase of the composites aid in_______________?

15 / 50

Mode of failure during dislodgement of prosthesis cemented with zinc poly carboxylate cement is usually seen at the_____________?

16 / 50

Minimum flow of Type-I impression compound at mouth temperature is___________________?

17 / 50

Non metal which conducts elactricity______________?

18 / 50

Rough and irregular surface produced on the impression is because of ?

19 / 50

Absorption of mercury in the human body occurs least from_____________?

20 / 50

The function of 2% potassium sulphate in a gypsum product is_____________?

21 / 50

Which of the following inhibitor accelerator system uses light activation composite ?

22 / 50

Gallium and indium added to Amalgam replace______________?

23 / 50

The most mucostatic impression material is_______________?

24 / 50

Suck back porosity in the casting can be eliminated by________________?

25 / 50

In non zinc containing dental amalgam alloy the percentage of zinc present is______________?

26 / 50

During amalgamation, trituration is done to_____________?

27 / 50

Porosity in porcelain at condensation stage depends on_________________?

28 / 50

Advantage of zinc containing amalgam is_______________?

29 / 50

The term ordered hardening heat treatment used in which of the following dental alloys ?

30 / 50

Which zone is the hottest and efficient burning zone of the flame used for casting ?

31 / 50

Rinsing of the impression is important to________________?

32 / 50

Which one of the following elements is NOT added is small amount to be used as grain refiners ?

33 / 50

Plaster of paris _____________?

34 / 50

Cobalt-Chrominum alloys contains_______________?

35 / 50

Which of the following show chemical bond with enamel (Calcified tissues)______________?

36 / 50

Acrylic resins are used for______________?

37 / 50

Most biocompatible material in oral cavity is_______________?

38 / 50

Polycarboxylate cement is used for_____________?

39 / 50

Which one of the following is not an objective of trituration ?

40 / 50

Name the accelerator used in Zinc oxide eugenol paste______________?

41 / 50

Dynamic creep is the______________?

42 / 50

Titanium casting is done_____________?

43 / 50

Finishing and polishing of Amalgam make the restoration______________?

44 / 50

Inelastic impression material is_____________?

45 / 50

All of the following can be used to slow down the setting of Zinc oxide eugenol impression paste EXCEPT_________________?

46 / 50

Strength of zinc phosphate is effected by_______________?

47 / 50

The cement Which is least soluble in oral cavity______________?

48 / 50

The term trituration means____________?

49 / 50

Which of the following best describes the working time of elastomeric impression material ?

50 / 50

The porosity formed due to simultaneous nucleation of solid grains and gas bubbles at the first moment that metal freezes at the mold walls is called__________?

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