Question 1

Etching for dental bonding is done with:

Accepted Answer

A)  phosphoric acid.
B)  ammonia.
C)  isopropyl alcohol.
D)  hydrogen peroxide.

Question 2

You are asked to select a base for a deep cavity preparation because of extensive decay.Which would you select?

Accepted Answer

A)  Zinc oxide-eugenol
B)  Zinc phosphate
C)  Polycarboxylate
D)  Any of these

Question 3

Varnish should be placed on the ______ of the preparation.

Accepted Answer

A)  walls
B)  floor
C)  margins
D)  all of the above

Question 4

A _______ appearance assures a tooth has been properly etched.

Accepted Answer

A)  shiny
B)  pitted
C)  frosted appearance
D)  none of the above C

Question 5

Dental varnish is used in the cavity preparation to:

Accepted Answer

A)  seal dentinal tubules.
B)  reduce leakage around a restoration.
C)  stimulate growth of reparative dentin.
D)   both a and b.

Question 6

ZOE mixed to a base consistency should not be:

Accepted Answer

A)  thick and putty-like.
B)  rolled into a one large ball.
C)  placed to cover the entire pulpal floor.
D)  tapped lightly into the preparation with a condenser. B

Question 7

Materials that are versatile in their uses,such as for specialized dental bases,include:

Accepted Answer

A)  dental cements.
B)  dental varnishes.
C)  dental liners.
D)  calcium hydroxide.

Question 8

Varnish should be placed:

Accepted Answer

A)  in one thick layer.
B)  in two light coats.
C)  before a sedative base.
D)  none of the above.

Question 9

Which of the following is not true of the process of removing the smear layer in dentin bonding?

Accepted Answer

A)  During preparation, thousands of dentin tubules are cut.
B)  Open ends of dentin tubules lead to sensitivity.
C)  All moisture must be removed to assist in adhesion.
D)  Completely drying the tooth structure will harm the tooth.

Question 10

Bonding agents or adhesives:

Accepted Answer

A)  can be light-cured.
B)  must be used after etching.
C)  are available as self-cured.
D)  all of the above. D

Question 11

Dental bonding is also referred to as a:

Accepted Answer

A)  dental adhesion.
B)  dental liner.
C)  desensitizer.
D)  none of the above.

Question 12

What is true of the bonding process?

Accepted Answer

A)  It can be performed on only the dentin.
B)  Contamination will not hinder the bond.
C)  Avoid overdrying or desiccating the tooth; the product works best on a slightly moist tooth structure.
D)  Using a small amount of bonding material is better than using too much.

Question 13

Acid etching utilizes etchant containing _____ acid.

Accepted Answer

A)  sulfuric
B)  hydrochloric
C)  phosphoric
D)  citric

Question 14

Calcium hydroxide:

Accepted Answer

A)  cannot be placed under direct composite resins because it will inhibit polymerization.
B)  stimulates the production of reparative dentin.
C)  functions as a thick base to support extensive restorations.
D)  consists of a resin in an organic solvent.

Question 15

Which is not a use of fluoride varnish?

Accepted Answer

A)  Treatment of hypersensitive cervical areas
B)  Dentin sealant
C)  Luting agent
D)  Topical fluoride application

Question 16

You are asked to select a protective base for insulation that is nonirritating under a composite restoration.Which would you select?

Accepted Answer

A)  Zinc oxide-eugenol
B)  Zinc phosphate
C)  Polycarboxylate
D)  Any of these

Question 17

Desensitizer should be placed:

Accepted Answer

A)  after thoroughly drying the tooth.
B)  on enamel only.
C)  and dried immediately.
D)  after rinsing and lightly drying.

Question 18

Insulating base material should cover the entire _______ to a thickness of _____ mm.

Accepted Answer

A)  cavity preparation; 1-2
B)  pulpal floor; 1-2
C)  cavity preparation; 2-3
D)  pulpal floor; 3-4

Question 19

Patients may feel sensitivity _______ after the placement of a restoration.

Accepted Answer

A)  immediately
B)  after a month
C)  several months
D)  sensitivity may develop at any time

Question 20

Thermal changes from hot,cold,or electrical energy created by other metals coming into contact with the tooth are defined as which type of pulpal stimuli?

Accepted Answer

A)  Biological
B)  Mechanical
C)  Physical
D)  Chemical

Exam 44: Dental Liners, Bases, and Bonding Systems

Etching for dental bonding is done with:

Correct AnswerverifiedShow Answer

You are asked to select a base for a deep cavity preparation because of extensive decay.Which would you select?

Correct AnswerverifiedShow Answer

Varnish should be placed on the ______ of the preparation.

Correct AnswerverifiedShow Answer

A _______ appearance assures a tooth has been properly etched.

Correct AnswerverifiedC

Dental varnish is used in the cavity preparation to:

Correct AnswerverifiedShow Answer

ZOE mixed to a base consistency should not be:

Correct AnswerverifiedB

Materials that are versatile in their uses,such as for specialized dental bases,include:

Correct AnswerverifiedShow Answer

Varnish should be placed:

Correct AnswerverifiedShow Answer

Which of the following is not true of the process of removing the smear layer in dentin bonding?

Correct AnswerverifiedShow Answer

Bonding agents or adhesives:

Correct AnswerverifiedD

Dental bonding is also referred to as a:

Correct AnswerverifiedShow Answer

What is true of the bonding process?

Correct AnswerverifiedShow Answer

Acid etching utilizes etchant containing _____ acid.

Correct AnswerverifiedShow Answer

Calcium hydroxide:

Correct AnswerverifiedShow Answer

Which is not a use of fluoride varnish?

Correct AnswerverifiedShow Answer

You are asked to select a protective base for insulation that is nonirritating under a composite restoration.Which would you select?

Correct AnswerverifiedShow Answer

Desensitizer should be placed:

Correct AnswerverifiedShow Answer

Insulating base material should cover the entire _______ to a thickness of _____ mm.

Correct AnswerverifiedShow Answer

Patients may feel sensitivity _______ after the placement of a restoration.

Correct AnswerverifiedShow Answer

Thermal changes from hot,cold,or electrical energy created by other metals coming into contact with the tooth are defined as which type of pulpal stimuli?

Correct AnswerverifiedShow Answer

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C

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B

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D

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Insulating base material should cover the entire ___ to a thickness of _ mm.

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