Biomaterial Test

0%
5 votes, 5 avg
84

You will have 60 minutes to complete all the questions. After the timer reaches 60 minutes, the exam will end and be saved automatically. Good luck! *Fingers crossed*

The timer has been reached. The exam has now been terminated and saved.


Biomaterial Test

 

1 / 60

Porcelain-bonded to metal is stronger when fired πŸ˜•

2 / 60

The noble or base metal alloys used for PFM should have the following requisite :

3 / 60

Which of the following office conditions minimize the health hazard from spilled mercury ?

4 / 60

Which of the following statements is true regarding zinc phosphate cement ?

5 / 60

Strength of dental porcelain is dependent on πŸ˜•

6 / 60

For luting purpose, the film thickness should be πŸ˜•

7 / 60

Working time of denture resin should be at least πŸ˜•

8 / 60

Gypsum investments should not be heated above πŸ˜•

9 / 60

Resistance of a liquid to motion is called πŸ˜•

10 / 60

Excess composite from the labial surfaces can be removed by using πŸ˜•

11 / 60

Crystalline materials have πŸ˜•

12 / 60

Hydrocolloid impression should be removed from the mouth with a sharp jerk because πŸ˜•

13 / 60

Oxalates, carbonates, potassium, trisodium phosphates are added to alginate as πŸ˜•

14 / 60

A portion of a posterior tooth that is subject to high biting forces would likely be restored with which of the following ?

15 / 60

Which statements are true for bonding of amalgam to tooth structure ?

16 / 60

A glaze is placed over the finished composite restoration to πŸ˜•

17 / 60

The strain at which the plastic strain develops may be represented by πŸ˜•

18 / 60

If the light cure resin is curd in increments, it helps in πŸ˜•

19 / 60

Which of the following statements about curing of composites are true ?

20 / 60

Proconditioning before GIC restoration is done in order to πŸ˜•

21 / 60

Cobalt-chromium alloy is mostly used for the construction of πŸ˜•

22 / 60

Alginate impression material deteriorates rapidly at πŸ˜•

23 / 60

Which of these statements are correct in terms of preparing a correctly triturated mass of amalgam ?

24 / 60

Glass ionomer cenment is not recommended for πŸ˜•

25 / 60

Most commonly used pit and fissure sealant is πŸ˜•

26 / 60

Which of the following properties of calcium hydroxide cement help in the formation of reparative dentin ?

27 / 60

Condensation of porcelain is done by all the methods except πŸ˜•

28 / 60

Regarding Knoop hardness number, which of the following material is closest to that of dentine (KHN 65) ?

29 / 60

Which of the following sentences describes the construction of removable partial dentures ?

30 / 60

In visible light-cured composites photo initiator molecule is πŸ˜•

31 / 60

Modifiers are added to plaster of Paris mainly to πŸ˜•

32 / 60

The primary difference between low- and high-copper amalgams is which of the following ?

33 / 60

Acrylic resins are used in which of the following ?

34 / 60

Compared to lathe-cut alloy, spherical dental amalgam alloys πŸ˜•

35 / 60

The fluoride release from glass ionomer cement is πŸ˜•

36 / 60

The energy absorbed by a material when it is stressed to its proportional limit is πŸ˜•

37 / 60

The chemistry behind the condensation of the amalgam is to πŸ˜•

38 / 60

Thermal conductivity is proportional to πŸ˜•

39 / 60

The reason zinc oxide eugenol cement is used as a temporary restoration πŸ˜•

40 / 60

Which one of the following is not true about high-copper dental amalgam restorations ?

41 / 60

Which of the following composite is recommended for non stress bearing anterior restoration ?

42 / 60

Ideal method firing of porcelain is by using πŸ˜•

43 / 60

The restorative material used to restore a small portion of an anterior tooth should have which of the following properties ?

44 / 60

The constituent that acts as a binder in the investment is πŸ˜•

45 / 60

Polyether is different from other elastomers in the following aspects πŸ˜•

46 / 60

The cavity for a GIC restoration is preconditioned with πŸ˜•

47 / 60

Side effects and complications resulting from treatment by a physician or dentist is πŸ˜•

48 / 60

Impression compound is characterized by πŸ˜•

49 / 60

Hand instruments for composites are made of πŸ˜•

50 / 60

One of the disadvantages of using quartz as filler in restorative resin is πŸ˜•

51 / 60

Which one of the following mixing methods permits the escape of dental amalgam mercury vapor ?

52 / 60

Conventional dental amalgam alloy contains πŸ˜•

53 / 60

In a porcelain fused to metal restoration, when the coefficient of thermal expansion of metal and porcelain are different πŸ˜•

54 / 60

Commonly used viscosity controller in composites is πŸ˜•

55 / 60

Property which distinguishes composites from filled acrylic resins πŸ˜•

56 / 60

Greening effect of porcelain is due to πŸ˜•

57 / 60

Light source in the curing unit is usually πŸ˜•

58 / 60

Silver has all the following characteristics except πŸ˜•

59 / 60

Which of the following is used to alter contour of impression trays ?

60 / 60

The following statements about dental porcelains are true except πŸ˜•

Your score is

The average score is 73%

0%

Any comments?