Question 1

Retention holds a material in place and seals the structures together.

Accepted Answer

A) True 
 B)False

Question 2

A(n) _____ is defined as a mixture of two or more metals.

Accepted Answer

A)  alloy
B)  amalgam
C)  ceramic
D)  porcelain

Question 3

The instrument used to smooth the amalgam surface is:

Accepted Answer

A)  a condenser.
B)  a burnisher.
C)  a carver.
D)  articulating paper.

Question 4

The curing process in which it is the most critical that the materials are mixed and placed within the working and setting times is with:

Accepted Answer

A)  auto-cured materials.
B)  light-cured materials.
C)  dual-cured materials.
D)  none of the above.

Question 5

Composite resin materials are supplied in all of the following ways except they:

Accepted Answer

A)  are supplied in a lightproof syringe.
B)  require mixing.
C)  are supplied in various shades.
D)  do not require mixing.

Question 6

To adjust the occlusion on a recently place amalgam,the patient should be instructed to bite ______ on the articulating paper.

Accepted Answer

A)  firmly
B)  and rotate repeatedly
C)  lightly
D)  and open and close again

Question 7

To ensure an accurate ratio of alloy and mercury,the best protocol to follow is to:

Accepted Answer

A)  use premeasured capsules.
B)  measure accurately.
C)  reuse capsules.
D)  do all of the above.

Question 8

All of the following are advantages of amalgam over composite as a restorative material except:

Accepted Answer

A)  cost.
B)  moisture control.
C)  esthetics.
D)  strength.

Question 9

Composites can be used for class ___ restorations.

Accepted Answer

A)  I, III, and V
B)  I and IV
C)  II, III, and IV
D)  I, II, III, IV, and V

Question 10

________ occurs when a metal restoration is touched by a fork.

Accepted Answer

A)  Microleakage
B)  Galvanic action
C)  Sheer stress
D)  Corrosion

Question 11

The ADA and the National Institute of Health-Nations Administration _____ the use of amalgam as a posterior restorative material.

Accepted Answer

A)  discourages
B)  supports
C)  forbids
D)  has no opinion on

Question 12

Which restorative materials are not artistically pleasing?

Accepted Answer

A)  Amalgam
B)  Composites
C)  Porcelain
D)  Both a and b

Question 13

For adhesion to take place,_____ film thickness is desired.

Accepted Answer

A)  a thick
B)  a thin
C)  a medium
D)  any

Question 14

A liquid with high viscosity _____ flow easily and _____ effective in wetting a surface.

Accepted Answer

A)  does; is
B)  does; is not
C)  does not; is
D)  does not; is not

Question 15

Which of the following is an advantage to using glass ionomer as a restorative material?

Accepted Answer

A)  Glass ionomer has the ability to bind to teeth mechanically, rather than chemically.
B)  Glass ionomer releases fluoride after their final setting.
C)  Loss of gloss indicates a proper mix of glass ionomer material.
D)  There is no need to avoid contact with water during the mixing procedure for glass ionomer.

Question 16

A noble metal used for cast restorations in dentistry is:

Accepted Answer

A)  palladium.
B)  iron.
C)  tin.
D)  zinc.

Question 17

The type of ceramic most often used in dentistry for castings is:

Accepted Answer

A)  composite resin.
B)  glass ionomer.
C)  zinc oxide-eugenol cement.
D)  porcelain.

Question 18

Which of the following statements is true of the composition of tooth-whitening materials?

Accepted Answer

A)  Most tooth-whitening products are made from a bleach (sodium hypochlorite) -based ingredient.
B)  The tooth-whitening solution comes in a single concentration of 37%.
C)  When the product contacts the teeth, it allows oxygen to enter the enamel and dentin, which whitens the colored substances.
D)  The structure of the tooth is altered by whitening materials.

Question 19

Corrosion of metal restorative materials:

Accepted Answer

A)  is a reaction that occurs when metal is exposed to products such as temperature, humidity, and saline.
B)  is easily removed with polishing agents.
C)  is both a and b
D)  does not occur.

Question 20

The dental restorations created in the laboratory by the dental laboratory technician are classified as _____ restorations.

Accepted Answer

A)  direct
B)  indirect
C)  provisional
D)  amalgam

Exam 43: Restorative and Esthetic Dental Materials

Which of the following statements is true of the composition of tooth-whitening materials?

Correct AnswerverifiedShow Answer

The curing process in which it is the most critical that the materials are mixed and placed within the working and setting times is with:

Correct AnswerverifiedShow Answer

Corrosion of metal restorative materials:

Correct AnswerverifiedShow Answer

________ occurs when a metal restoration is touched by a fork.

Correct AnswerverifiedShow Answer

Composite resin materials are supplied in all of the following ways except they:

Correct AnswerverifiedShow Answer

The instrument used to smooth the amalgam surface is:

Correct AnswerverifiedShow Answer

The ADA and the National Institute of Health-Nations Administration _____ the use of amalgam as a posterior restorative material.

Correct AnswerverifiedShow Answer

Which restorative materials are not artistically pleasing?

Correct AnswerverifiedShow Answer

The dental restorations created in the laboratory by the dental laboratory technician are classified as _____ restorations.

Correct AnswerverifiedShow Answer

A(n) _____ is defined as a mixture of two or more metals.

Correct AnswerverifiedShow Answer

The type of ceramic most often used in dentistry for castings is:

Correct AnswerverifiedShow Answer

All of the following are advantages of amalgam over composite as a restorative material except:

Correct AnswerverifiedShow Answer

To ensure an accurate ratio of alloy and mercury,the best protocol to follow is to:

Correct AnswerverifiedShow Answer

A noble metal used for cast restorations in dentistry is:

Correct AnswerverifiedShow Answer

For adhesion to take place,_____ film thickness is desired.

Correct AnswerverifiedShow Answer

A liquid with high viscosity _____ flow easily and _____ effective in wetting a surface.

Correct AnswerverifiedShow Answer

Composites can be used for class ___ restorations.

Correct AnswerverifiedShow Answer

Which of the following is an advantage to using glass ionomer as a restorative material?

Correct AnswerverifiedShow Answer

To adjust the occlusion on a recently place amalgam,the patient should be instructed to bite ______ on the articulating paper.

Correct AnswerverifiedShow Answer

Retention holds a material in place and seals the structures together.

Correct AnswerverifiedShow Answer

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A liquid with high viscosity _ flow easily and _ effective in wetting a surface.

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