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Dental Materials Quiz 10

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Dental Materials Quiz 10

1 / 50

Quartz is Dental porcelain is______________?

2 / 50

Over-trituration of silver alloy and mercury_______________?

3 / 50

According of ADA specification No or number 1, the minimum compressive strength for silver amalgam filling aftr one hour should be________________?

4 / 50

The role of magnesium chloride in zinc oxide eugenol impression paste_________________?

5 / 50

The setting expansion of gypsum products can be reduced by________________?

6 / 50

Hydroquinone is added to methyl methacrylate monomer_________________?

7 / 50

Ductility of a material is a measure of it?s_______________?

8 / 50

Elastomers are_________________?

9 / 50

Etching of dentin does not include_____________?

10 / 50

Asbestos liner is used in a casting ring to________________?

11 / 50

Which one of the following restorative materials is having coefficient of thermal expansion close to that of tooth enamel and dentin ?

12 / 50

Stabilization of stainless steel is achieved by adding____________?

13 / 50

Machineable glass ceramic is________________?

14 / 50

Direct filling gold formed by electrolytic precipitation is called by all the terms EXCEPT______________?

15 / 50

Type I gypsum product is also called_______________?

16 / 50

Perforated impression tray are used for_______________?

17 / 50

Masterial causing minimum tissue distortion is______________?

18 / 50

Which of the following acts as accelerator in Zinc oxide eugenol______________?

19 / 50

A thinner mix of a gypsum bonded investment will_______________?

20 / 50

Gillmore needle is used for_______________?

21 / 50

The tow cements which hold with the tooth are_______________?

22 / 50

Passivating alloys are_______________?

23 / 50

Nickel-Titanium alloy has__________________?

24 / 50

Linear coefficient of thermal expansion of metal used for metal caramic restoration range from________________?

25 / 50

The tarnished layer of silver amalgam consists of________________?

26 / 50

The cohesive gold used as bulk filler is_____________?

27 / 50

Retarder in Zinc oxide eugenol is______________?

28 / 50

K2SO4 in agar-agar is for_______________?

29 / 50

Indium in metal alloys_______________?

30 / 50

The main components is sillicophosphate cement________________?

31 / 50

Porosity present in a acrylic denture is usually the result of______________?

32 / 50

Which of the following constituents of amalgam alloy decreases expansion____________?

33 / 50

Subsurface porosity is due to_____________?

34 / 50

Which of the following is function of fluoride flux in soldering process ?

35 / 50

The highest mercury concentration in amalgam filling is found_____________?

36 / 50

Porosity of denture base is due to_______________?

37 / 50

Plaster of paris is mixed in________________?

38 / 50

The material used in its pure form in dentistry is______________?

39 / 50

Sol ? gel transformation is seen in________________?

40 / 50

In reversible hydrocolloid the property by which the transformation from sol to gel and gel to sol is a function of the_____________?

41 / 50

The advantage of ZOE impression paste_______________?

42 / 50

Two in one stage impression materials include______________?

43 / 50

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

44 / 50

Brazilian test is used to determine the ultimates tensile strength of_________________?

45 / 50

Chronic mercury toxicity results from_____________?

46 / 50

Coefficient of thermal expansion of which of following is most similar to that of tooth ?

47 / 50

The purity of gold is expressed in________________?

48 / 50

When two metals are completely miscible in liquid state and they remain completely mixed on solidifiation, the alloy formed is called________________?

49 / 50

Balanced stone is dental stone_______________?

50 / 50

Amalgam achieves 70% of the strength by____________?

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