Dental Materials Quiz 8

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Dental Materials Quiz 8

1 / 50

Which of the following are characteristic feature of high copper amalgam alloy ?

2 / 50

Which one of the following impression materials is elastic, sets by a chemical reaction and is catalyzed by chloroplatinic acid_______________?

3 / 50

Setting of POP is result of______________?

4 / 50

In self-cure acrylic resin, activator is_____________?

5 / 50

In porcelain metal elements are embedded in the matrix of________________?

6 / 50

Palladium is added to polyvinyl siloxane to_____________?

7 / 50

The effect of trituration on strength in an amalgam restoration depends on______________?

8 / 50

Brinnel hardness number of a dental gold alloy is directly proportional to its______________?

9 / 50

Elastomers except: Polyether are_______________?

10 / 50

The most commonly used Titanium alloy for dental and medical purposes is________________?

11 / 50

Boiling point of methyl methacrylate________________?

12 / 50

All of the following is used as accelerator in zinc oxide eugenol cement except_____________?

13 / 50

Linear contraction of elostomeric impression with passage of time is highest in______________?

14 / 50

Glass ionomer cements are composed of______________?

15 / 50

The solid solution of silver and mercury is called_______________?

16 / 50

Which glass ionomer cement develops early resistance to water intake on setting ?

17 / 50

The strain that occurs when a material is stressed to its proportional limit is______________?

18 / 50

Before pouring an elastic impression it is washed with slurry of water and stone to______________?

19 / 50

Dimensional stability of hydrocolloid impressions may be achieved by_________________?

20 / 50

The forces that hold atoms together are called_____________?

21 / 50

Acid-etching is done for_______________?

22 / 50

Syringe material is______________?

23 / 50

The particle size in microfilled composites is_____________?

24 / 50

Air bubbles formed on the surface of casting is probably due to________________?

25 / 50

Final product in alginate is________________?

26 / 50

Use of dimethyl-P-toluidine is indicated for_______________?

27 / 50

The logical explanation for the unique anticariogenic property of most silicate cements is______________?

28 / 50

The process of changing the rubber base product or liquid polymer, to a rubber like material is generally known as_____________?

29 / 50

Reduction in the fusion temperature of dental gold casting alloys is caused by presence of______________?

30 / 50

A laminate impression technique utilizes_______________?

31 / 50

Which of the following provide opacity to composite ?

32 / 50

Secondary caries is least likely seen with_______________?

33 / 50

Impression compound has which of the following characteristic property ?

34 / 50

Powdered gold is___________________?

35 / 50

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

36 / 50

What is common in amalgam and ceramics ?

37 / 50

Which is not true about high copper amalgam alloys______________?

38 / 50

Munsell system is used to_________________?

39 / 50

Solder and flux used for joining Elgiloy wires are_____________?

40 / 50

Which of the following will produce the most rigid restoration for framework of same dimension ?

41 / 50

Dendrites in cst alloys form by mechanism of_________________?

42 / 50

The product, which is obtained by calcining gypsum under steam pressure at 120-130?C or by dehydrating gypsum in the presence of sodium succinate is_______________?

43 / 50

Binder used in Gypsum investment is_________________?

44 / 50

The function of the coupling agent in a restorative resin is to allow______________?

45 / 50

Best impression material to be used for securing impression after crown preparation_______________?

46 / 50

Modulus of elasticity means_______________?

47 / 50

During setting of alginate impression materials________________?

48 / 50

The best fuel gas when used with oxygen is______________?

49 / 50

Waxes are used for_______________?

50 / 50

Coefficient of thermal expansion of metal-ceramic alloys is________________?

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