Question 1

Why are varnishes used?

Accepted Answer

A)  Reduce leakage around margins and walls of the restoration-tooth interface 
B)  Insulate the pulp from deep or large restorations 
C)  Stimulate the formation of reparative dentin 
D)  Function as a therapeutic base 
A)  Reduce leakage around margins and walls of the restoration-tooth interface 
B)  Insulate the pulp from deep or large restorations 
C)  Stimulate the formation of reparative dentin 
D)  Function as a therapeutic base A

Question 2

Which of the following is a strong cement that may be used for permanent restorations such as crowns and bridges?

Accepted Answer

A)  Varnish 
B)  Calcium hydroxide 
C)  Zinc polycarboxylate 
D)  Unreinforced zinc oxide-eugenol 
E)  Unreinforced zinc oxide-noneugenol 
A)  Varnish 
B)  Calcium hydroxide 
C)  Zinc polycarboxylate 
D)  Unreinforced zinc oxide-eugenol 
E)  Unreinforced zinc oxide-noneugenol C

Question 3

Which type of cement, used for final cementation, has the highest compressive strength?

Accepted Answer

A)  Compomer 
B)  Glass ionomer 
C)  Zinc phosphate 
D)  Hybrid ionomer 
E)  Zinc polycarboxylate 
A)  Compomer 
B)  Glass ionomer 
C)  Zinc phosphate 
D)  Hybrid ionomer 
E)  Zinc polycarboxylate B

Question 4

Self-adhesive resin cements eliminate the need for primer and bond. They are as strong as adhesive resin cements.

Accepted Answer

A)  Statement 1 is correct; statement 2 is correct. 
B)  Statement 1 is incorrect; statement 2 is correct. 
C)  Statement 1 is correct; statement 2 is incorrect. 
D)  Statement 1 is incorrect; statement 2 is incorrect. 
A)  Statement 1 is correct; statement 2 is correct. 
B)  Statement 1 is incorrect; statement 2 is correct. 
C)  Statement 1 is correct; statement 2 is incorrect. 
D)  Statement 1 is incorrect; statement 2 is incorrect.

Question 5

Compomer cement is indicated for cementation of which of the following types of restorations?

Accepted Answer

A)  Ceramic-metal crowns 
B)  Traditional all-ceramic inlays 
C)  Traditional all-ceramic crowns 
D)  A, B, and C 
E)  A and C 
A)  Ceramic-metal crowns 
B)  Traditional all-ceramic inlays 
C)  Traditional all-ceramic crowns 
D)  A, B, and C 
E)  A and C

Question 6

Which materials may be used as a base for composites but not with traditional ceramics?

Accepted Answer

A)  Compomer 
B)  Zinc phosphate 
C)  Hybrid ionomer 
D)  A, B, and C 
E)  A and C 
A)  Compomer 
B)  Zinc phosphate 
C)  Hybrid ionomer 
D)  A, B, and C 
E)  A and C

Question 7

Which of the following statements is true of hybrid ionomer cements?

Accepted Answer

A)  They are oil-based cements. 
B)  They are resin-modified zinc polycarboxylate cements. 
C)  They may be used for cementation of zirconia-based all-ceramic crowns and bridges. 
D)  They are recommended for cementation of lower strength all-ceramic inlays, onlays, or crowns. 
A)  They are oil-based cements. 
B)  They are resin-modified zinc polycarboxylate cements. 
C)  They may be used for cementation of zirconia-based all-ceramic crowns and bridges. 
D)  They are recommended for cementation of lower strength all-ceramic inlays, onlays, or crowns.

Question 8

Which cement is used for provisional posterior restorations?

Accepted Answer

A)  Zinc phosphate 
B)  Calcium hydroxide 
C)  Zinc oxide-eugenol 
D)  Zinc polycarboxylate 
A)  Zinc phosphate 
B)  Calcium hydroxide 
C)  Zinc oxide-eugenol 
D)  Zinc polycarboxylate

Question 9

Which cement shows histologic reactions similar to zinc polycarboxylate cement?

Accepted Answer

A)  Resin-modified ionomer 
B)  Zinc oxide-eugenol 
C)  Glass ionomer 
D)  Zinc phosphate 
A)  Resin-modified ionomer 
B)  Zinc oxide-eugenol 
C)  Glass ionomer 
D)  Zinc phosphate

Question 10

Which of the following statements is true of the manipulation of zinc polycarboxylate cement?

Accepted Answer

A)  The proper consistency is creamy. 
B)  The liquid is added to the powder. 
C)  The mixing time is about 3 minutes. 
D)  The cement should be mixed over a large area of the mixing surface. 
A)  The proper consistency is creamy. 
B)  The liquid is added to the powder. 
C)  The mixing time is about 3 minutes. 
D)  The cement should be mixed over a large area of the mixing surface.

Question 11

Zinc oxide-eugenol cement is a single paste system. Zinc oxide-eugenol cements should be mixed with a plastic spatula.

Accepted Answer

A)  Statement 1 is correct; statement 2 is correct. 
B)  Statement 1 is incorrect; statement 2 is correct. 
C)  Statement 1 is correct; statement 2 is incorrect. 
D)  Statement 1 is incorrect; statement 2 is incorrect. 
A)  Statement 1 is correct; statement 2 is correct. 
B)  Statement 1 is incorrect; statement 2 is correct. 
C)  Statement 1 is correct; statement 2 is incorrect. 
D)  Statement 1 is incorrect; statement 2 is incorrect.

Question 12

Which cement can be mixed to a luting consistency or to a ball consistency?

Accepted Answer

A)  Zinc phosphate 
B)  Glass ionomer 
C)  Calcium hydroxide 
D)  Zinc oxide-eugenol 
A)  Zinc phosphate 
B)  Glass ionomer 
C)  Calcium hydroxide 
D)  Zinc oxide-eugenol

Question 13

When would an adhesive resin cement not be used?

Accepted Answer

A)  Indirect esthetic restoration 
B)  Metal ceramic crown 
C)  Alloys 
D)  All of the above 
E)  A and B only 
A)  Indirect esthetic restoration 
B)  Metal ceramic crown 
C)  Alloys 
D)  All of the above 
E)  A and B only

Question 14

Which of the following is correct about root canal sealers?

Accepted Answer

A)  Zinc oxide-eugenol based 
B)  Short working time 
C)  High solubility 
D)  Radiolucent 
A)  Zinc oxide-eugenol based 
B)  Short working time 
C)  High solubility 
D)  Radiolucent

Question 15

Which of the following is oil-based cement?

Accepted Answer

A)  Glass ionomer 
B)  Hybrid ionomer 
C)  Zinc oxide-eugenol 
D)  Zinc polycarboxylate 
A)  Glass ionomer 
B)  Hybrid ionomer 
C)  Zinc oxide-eugenol 
D)  Zinc polycarboxylate

Question 16

Cements are generally hard, brittle materials formed when a powdered _____ is mixed with a liquid.

Accepted Answer

A)  quartz 
B)  monomer 
C)  acrylic resin 
D)  oxide or glass 
A)  quartz 
B)  monomer 
C)  acrylic resin 
D)  oxide or glass

Question 17

Why are varnishes and cavity liners used prior to placing a direct restoration?

Accepted Answer

A)  Function as a protective barrier between dentin and the restorative material 
B)  Minimize the ingress of oral fluids at the restoration-tooth interface 
C)  Protect the pulp from the high pH of calcium hydroxide 
D)  A, B, and C are correct. 
E)  Only A and B are correct. 
A)  Function as a protective barrier between dentin and the restorative material 
B)  Minimize the ingress of oral fluids at the restoration-tooth interface 
C)  Protect the pulp from the high pH of calcium hydroxide 
D)  A, B, and C are correct. 
E)  Only A and B are correct.

Question 18

When are esthetic resin cements used?

Accepted Answer

A)  Fill root canals 
B)  Bond metal restorations 
C)  Bond ceramic restorations 
D)  Bond orthodontic brackets 
A)  Fill root canals 
B)  Bond metal restorations 
C)  Bond ceramic restorations 
D)  Bond orthodontic brackets

Question 19

Compare and contrast high-strength bases, liners, and varnishes.

Accepted Answer

High-strength bases are used when there

Question 20

Which of the following is not a water-based cement?

Accepted Answer

A)  Glass ionomer 
B)  Hybrid ionomer 
C)  Zinc oxide-eugenol 
D)  Zinc polycarboxylate 
A)  Glass ionomer 
B)  Hybrid ionomer 
C)  Zinc oxide-eugenol 
D)  Zinc polycarboxylate

Why are varnishes used?

Which of the following is a strong cement that may be used for permanent restorations such as crowns and bridges?

Which type of cement, used for final cementation, has the highest compressive strength?

Self-adhesive resin cements eliminate the need for primer and bond. They are as strong as adhesive resin cements.

Compomer cement is indicated for cementation of which of the following types of restorations?

Which materials may be used as a base for composites but not with traditional ceramics?

Which of the following statements is true of hybrid ionomer cements?

Which cement is used for provisional posterior restorations?

Which cement shows histologic reactions similar to zinc polycarboxylate cement?

Which of the following statements is true of the manipulation of zinc polycarboxylate cement?

Zinc oxide-eugenol cement is a single paste system. Zinc oxide-eugenol cements should be mixed with a plastic spatula.

Which cement can be mixed to a luting consistency or to a ball consistency?

When would an adhesive resin cement not be used?

Which of the following is correct about root canal sealers?

Which of the following is oil-based cement?

Cements are generally hard, brittle materials formed when a powdered _____ is mixed with a liquid.

Why are varnishes and cavity liners used prior to placing a direct restoration?

When are esthetic resin cements used?

Compare and contrast high-strength bases, liners, and varnishes.

Which of the following is not a water-based cement?

Introduction to Restorative Dental Materials

Properties of Materials

Preventive Dental Materials

Direct Esthetic Restorative Materials

Dental Amalgam

Finishing, Polishing, and Cleansing Materials

Impression Materials

Model and Die Materials

Waxes

Casting Alloys, Wrought Alloys, and Solders

Casting, Soldering, and Welding

Polymers in Prosthodontics

Dental Ceramics

Dental Implants

Filters

Exam 7: Cements

Why are varnishes used?

Which of the following is a strong cement that may be used for permanent restorations such as crowns and bridges?

Which type of cement, used for final cementation, has the highest compressive strength?

Self-adhesive resin cements eliminate the need for primer and bond. They are as strong as adhesive resin cements.

Compomer cement is indicated for cementation of which of the following types of restorations?

Which materials may be used as a base for composites but not with traditional ceramics?

Which of the following statements is true of hybrid ionomer cements?

Which cement is used for provisional posterior restorations?

Which cement shows histologic reactions similar to zinc polycarboxylate cement?

Which of the following statements is true of the manipulation of zinc polycarboxylate cement?

Zinc oxide-eugenol cement is a single paste system. Zinc oxide-eugenol cements should be mixed with a plastic spatula.

Which cement can be mixed to a luting consistency or to a ball consistency?

When would an adhesive resin cement not be used?

Which of the following is correct about root canal sealers?

Which of the following is oil-based cement?

Cements are generally hard, brittle materials formed when a powdered _____ is mixed with a liquid.

Why are varnishes and cavity liners used prior to placing a direct restoration?

When are esthetic resin cements used?

Compare and contrast high-strength bases, liners, and varnishes.

Which of the following is not a water-based cement?

Introduction to Restorative Dental Materials

Properties of Materials

Preventive Dental Materials

Direct Esthetic Restorative Materials

Dental Amalgam

Finishing, Polishing, and Cleansing Materials

Impression Materials

Model and Die Materials

Waxes

Casting Alloys, Wrought Alloys, and Solders

Casting, Soldering, and Welding

Polymers in Prosthodontics

Dental Ceramics

Dental Implants

Filters