Question 1

Materials used to restore posterior teeth must be capable of withstanding _____ psi.

Accepted Answer

A)  10,000
B)  15,000
C)  18,000
D)  28,000E) C) and D)
F) B) and D) D

Question 2

_____ is added to dental amalgam alloy powder to suppress oxidation.

Accepted Answer

A)  Silver
B)  Tin
C)  Copper
D)  ZincE) A) and C)
F) All of the above D

Question 3

The process of setting of a material is correctly referred to as:

Accepted Answer

A)  gelling.
B)  hardening.
C)  curing.
D)  triturating.E) B) and C)
F) None of the above

Question 4

Single-spill capsules:

Accepted Answer

A)  contain 600 mg of alloy.
B)  are used for small restorations.
C)  should be discarded immediately after use.
D)  All of the above are correct.E) A) and D)
F) None of the above

Question 5

One of the fastest and most cost-effective ways of restoring the esthetic appearance of teeth is:

Accepted Answer

A)  bleaching.
B)  porcelain veneers.
C)  composite veneers.
D)  ceramic crowns.E) B) and C)
F) A) and D)

Question 6

The conventional or traditional composites,which contain the largest filler particles and provide the greatest strength,are known as _____ composites.

Accepted Answer

A)  microfilled
B)  midfilled
C)  hybrid
D)  macrofilledE) A) and C)
F) All of the above

Question 7

All of the following are true statements about in-office tooth whitening except it:

Accepted Answer

A)  can usually be done in one treatment.
B)  requires a light-accelerated bleach.
C)  requires multiple treatments.
D)  involves isolation of soft tissue.E) A) and B)
F) B) and D)

Question 8

Glass ionomer can be used for class _____ restorations.

Accepted Answer

A)  II
B)  III
C)  IV
D)  VE) A) and D)
F) A) and C)

Question 9

The resin matrix component of composite is dimethacrylate,a fluid-like material also referred to as:

Accepted Answer

A)  quartz.
B)  silica.
C)  IRM.
D)  BIS-GMA.E) B) and C)
F) All of the above

Question 10

Which is not true of microleakage?

Accepted Answer

A)  It is caused by different rates of expansion and contraction of tooth structure and restorative materials.
B)  It is the minute space between the restoration and tooth structure.
C)  It occurs rarely.
D)  It allows fluid and debris to enter between the restoration and tooth.E) A) and C)
F) All of the above

Question 11

Chewing is an example of _______ stress.

Accepted Answer

A)  compressive
B)  tensile
C)  shear
D)  all of the aboveE) All of the above
F) B) and C) A

Question 12

All the following statements about nonmercury alloys are true except they:

Accepted Answer

A)  are not sensitive to moisture.
B)  are placed after a resin liner.
C)  require the application of a sealant over the restoration.
D)  All of the above are true.E) A) and C)
F) A) and B)

Question 13

The curing time of composite restorations is not influenced by:

Accepted Answer

A)  manufacturer's instructions.
B)  the base used.
C)  thickness or size of restoration.
D)  the shade of the restoration.E) A) and D)
F) B) and C)

Question 14

Ideally,composite resin shades should be chosen in:

Accepted Answer

A)  daylight.
B)  normal ambient light.
C)  bright light.
D)  operatory light.E) B) and D)
F) All of the above

Question 15

The term restorative describes the ability to:

Accepted Answer

A)  remove disease.
B)  restore function.
C)  be esthetic.
D)  remove disease and restore function.E) A) and B)
F) A) and C)

Question 16

The addition of _______ alloy to glass ionomers produces a product that can be used for core buildups and the repair of fractured cusps and amalgam fillings as well as abutments for overdentures.

Accepted Answer

A)  copper
B)  silver-tin
C)  gold
D)  zincE) A) and D)
F) None of the above

Question 17

The silver filling material used for more than150 years to restore primary and permanent teeth is called:

Accepted Answer

A)  amalgam.
B)  composite.
C)  glass ionomer.
D)  acrylic resin.E) A) and D)
F) None of the above

Question 18

All of the following are steps in finishing a composite restoration except:

Accepted Answer

A)  burnishing.
B)  reducing composite.
C)  fine finishing with disks and burs.
D)  polishing with strips and paste.E) B) and C)
F) A) and D)

Question 19

A properly triturated amalgam mix should:

Accepted Answer

A)  be a hard mass.
B)  contain dry particles.
C)  be a soft, pliable mass.
D)  separate when packed.E) B) and D)
F) A) and D)

Question 20

_____ is the process by which the resin material is changed from a pliable state into a hardened restoration.

Accepted Answer

A)  Trituration
B)  Retention
C)  Polymerization
D)  GalvanismE) All of the above
F) B) and C)

Exam 43: Restorative and Esthetic Dental Materials

Materials used to restore posterior teeth must be capable of withstanding _____ psi.

Correct AnswerverifiedD

_____ is added to dental amalgam alloy powder to suppress oxidation.

Correct AnswerverifiedD

The process of setting of a material is correctly referred to as:

Correct AnswerverifiedShow Answer

Single-spill capsules:

Correct AnswerverifiedShow Answer

One of the fastest and most cost-effective ways of restoring the esthetic appearance of teeth is:

Correct AnswerverifiedShow Answer

The conventional or traditional composites,which contain the largest filler particles and provide the greatest strength,are known as _____ composites.

Correct AnswerverifiedShow Answer

All of the following are true statements about in-office tooth whitening except it:

Correct AnswerverifiedShow Answer

Glass ionomer can be used for class _____ restorations.

Correct AnswerverifiedShow Answer

The resin matrix component of composite is dimethacrylate,a fluid-like material also referred to as:

Correct AnswerverifiedShow Answer

Which is not true of microleakage?

Correct AnswerverifiedShow Answer

Chewing is an example of _______ stress.

Correct AnswerverifiedA

All the following statements about nonmercury alloys are true except they:

Correct AnswerverifiedShow Answer

The curing time of composite restorations is not influenced by:

Correct AnswerverifiedShow Answer

Ideally,composite resin shades should be chosen in:

Correct AnswerverifiedShow Answer

The term restorative describes the ability to:

Correct AnswerverifiedShow Answer

The addition of _______ alloy to glass ionomers produces a product that can be used for core buildups and the repair of fractured cusps and amalgam fillings as well as abutments for overdentures.

Correct AnswerverifiedShow Answer

The silver filling material used for more than150 years to restore primary and permanent teeth is called:

Correct AnswerverifiedShow Answer

All of the following are steps in finishing a composite restoration except:

Correct AnswerverifiedShow Answer

A properly triturated amalgam mix should:

Correct AnswerverifiedShow Answer

_____ is the process by which the resin material is changed from a pliable state into a hardened restoration.

Correct AnswerverifiedShow Answer

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