Question 1

Silanes are used with which of the following dental materials?

Accepted Answer

A)  Gold 
B)  Porcelain 
C)  Silver dental amalgam 
D)  Partial denture frameworks 
A)  Gold 
B)  Porcelain 
C)  Silver dental amalgam 
D)  Partial denture frameworks B

Question 2

Which of the following is true of the smear layer?

Accepted Answer

A)  It is composed exclusively of bacterial plaque. 
B)  It is easily washed off with an air-water spray. 
C)  It forms on the external surface of uncut enamel. 
D)  It interferes with the formation of a bond to dentin and needs to be removed. 
A)  It is composed exclusively of bacterial plaque. 
B)  It is easily washed off with an air-water spray. 
C)  It forms on the external surface of uncut enamel. 
D)  It interferes with the formation of a bond to dentin and needs to be removed. D

Question 3

The most commonly used etchant or conditioner for tooth bonding is _____ in concentrations ranging from 10% to 38%.

Accepted Answer

A)  acetic acid 
B)  phosphoric acid 
C)  hydrochloric acid 
D)  sodium perborate 
A)  acetic acid 
B)  phosphoric acid 
C)  hydrochloric acid 
D)  sodium perborate B

Question 4

When are posts placed within the roots of endodontically treated teeth to retain dental materials used to build up the teeth?

Accepted Answer

A)  When the root needs strengthening 
B)  When the crown-to-root ratio is poor 
C)  When a multi-rooted tooth is involved 
D)  When coronal tooth structure is inadequate for restoration with a crown 
A)  When the root needs strengthening 
B)  When the crown-to-root ratio is poor 
C)  When a multi-rooted tooth is involved 
D)  When coronal tooth structure is inadequate for restoration with a crown

Question 5

When a resin bonding agent hardens,it creates projections that lock into the tooth,creating a _____ bond.The resin bonding agent will then form a _____ bond to other resins placed over it,such as composite resin.

Accepted Answer

A)  chemical;chemical 
B)  chemical;mechanical 
C)  mechanical;chemical 
D)  mechanical;mechanical 
A)  chemical;chemical 
B)  chemical;mechanical 
C)  mechanical;chemical 
D)  mechanical;mechanical

Question 6

What is the purpose of a dental bonding?

Accepted Answer

A)  To seal margins 
B)  To etch the enamel 
C)  To provide adhesion 
D)  To remove the smear layer 
A)  To seal margins 
B)  To etch the enamel 
C)  To provide adhesion 
D)  To remove the smear layer

Question 7

Match the items with the correct description below.
-Self-etch system

Accepted Answer

A) An attribute that allows a material to tolerate the presence of moisture 
B) A bonding system that does not use a separate etching procedure with phosphoric acid 
C) A resin/dentin layer formed by the intermixing of the dentin bonding agent with collagen fibrils exposed by acid etching 
D) An attribute that does not allow a material to tolerate or perform well in the presence of moisture 
E) A bonding system that includes etching of both enamel and dentin as a separate step from the application of bonding agents 
A) An attribute that allows a material to tolerate the presence of moisture 
B) A bonding system that does not use a separate etching procedure with phosphoric acid 
C) A resin/dentin layer formed by the intermixing of the dentin bonding agent with collagen fibrils exposed by acid etching 
D) An attribute that does not allow a material to tolerate or perform well in the presence of moisture 
E) A bonding system that includes etching of both enamel and dentin as a separate step from the application of bonding agents

Question 8

The primer portion of the dental bonding agent is _____ to water.

Accepted Answer

A)  hydrophilic 
B)  hydrophobic 
C)  hydroelectric 
A)  hydrophilic 
B)  hydrophobic 
C)  hydroelectric

Question 9

What is the wavelength of the curing light?

Accepted Answer

A)  Blue 
B)  Ultraviolet 
C)  Incandescent 
D)  Fluorescent 
A)  Blue 
B)  Ultraviolet 
C)  Incandescent 
D)  Fluorescent

Question 10

Match the items with the correct description below.
-Hybrid layer

Accepted Answer

A) An attribute that allows a material to tolerate the presence of moisture 
B) A bonding system that does not use a separate etching procedure with phosphoric acid 
C) A resin/dentin layer formed by the intermixing of the dentin bonding agent with collagen fibrils exposed by acid etching 
D) An attribute that does not allow a material to tolerate or perform well in the presence of moisture 
E) A bonding system that includes etching of both enamel and dentin as a separate step from the application of bonding agents 
A) An attribute that allows a material to tolerate the presence of moisture 
B) A bonding system that does not use a separate etching procedure with phosphoric acid 
C) A resin/dentin layer formed by the intermixing of the dentin bonding agent with collagen fibrils exposed by acid etching 
D) An attribute that does not allow a material to tolerate or perform well in the presence of moisture 
E) A bonding system that includes etching of both enamel and dentin as a separate step from the application of bonding agents

Question 11

Which etch or tooth conditioner is used when seating or repairing ceramic restorations?

Accepted Answer

A)  Acetic acid 
B)  Phosphoric acid 
C)  Hydrochloric acid 
D)  Hydrofluoric acid 
A)  Acetic acid 
B)  Phosphoric acid 
C)  Hydrochloric acid 
D)  Hydrofluoric acid

Question 12

Why should primary teeth be etched for longer periods of time than adult teeth?
1)The surface of the enamel has a prism pattern that is not well structured.
2)The enamel is considered aprismatic.
3)The enamel is less resistant to deep resin tag formation.
4)There is a greater likelihood of salivary contamination during etching.

Accepted Answer

A)  1,2,3,4 
B)  1,2,3 
C)  1,2 
D)  3,4 
A)  1,2,3,4 
B)  1,2,3 
C)  1,2 
D)  3,4

Question 13

Which of the following materials would not be used when placing a direct resin restoration?

Accepted Answer

A)  Bond 
B)  Etch 
C)  Cement 
D)  Curing light 
A)  Bond 
B)  Etch 
C)  Cement 
D)  Curing light

Question 14

Excess water left from the etching procedure is removed by gentle drying with air:

Accepted Answer

A)  until the dentin is bone dry. 
B)  but the dentin is left moist so that it glistens. 
C)  but the dentin should be left wet with etchant for bonding. 
D)  until a puddle of water remains in the bottom of the cavity preparation. 
A)  until the dentin is bone dry. 
B)  but the dentin is left moist so that it glistens. 
C)  but the dentin should be left wet with etchant for bonding. 
D)  until a puddle of water remains in the bottom of the cavity preparation.

Question 15

The etched surface of a permanent tooth should have a/an _____ appearance when dried.

Accepted Answer

A)  frosty 
B)  opaque 
C)  darkened 
D)  transparent 
A)  frosty 
B)  opaque 
C)  darkened 
D)  transparent

Question 16

When acid etching for bonding,it is desirable to have a _____ surface energy and a _____ angle of contact.

Accepted Answer

A)  high;high 
B)  high;low 
C)  low;high 
D)  low;low 
A)  high;high 
B)  high;low 
C)  low;high 
D)  low;low

Question 17

Contaminants on the surface of the tooth can greatly affect the longevity of the restoration and may include:

Accepted Answer

A)  saliva. 
B)  blood. 
C)  both a and b 
D)  Neither is of concern. 
A)  saliva. 
B)  blood. 
C)  both a and b 
D)  Neither is of concern.

Question 18

What is done to the dentinal surface following etching?

Accepted Answer

A)  Dried to remove the smear layer 
B)  Dried to lower the surface tension 
C)  Left moist to keep the collagen fibrils fluffed up 
D)  Left moist to prevent oozing of fluid from the dentinal tubules 
A)  Dried to remove the smear layer 
B)  Dried to lower the surface tension 
C)  Left moist to keep the collagen fibrils fluffed up 
D)  Left moist to prevent oozing of fluid from the dentinal tubules

Question 19

Overdrying of the dentin after etching can cause:

Accepted Answer

A)  dehydration. 
B)  desiccation. 
C)  tooth hypersensitivity. 
D)  both b and c 
A)  dehydration. 
B)  desiccation. 
C)  tooth hypersensitivity. 
D)  both b and c

Question 20

Match the items with the correct description below.
-Total-etch system

Accepted Answer

A) An attribute that allows a material to tolerate the presence of moisture 
B) A bonding system that does not use a separate etching procedure with phosphoric acid 
C) A resin/dentin layer formed by the intermixing of the dentin bonding agent with collagen fibrils exposed by acid etching 
D) An attribute that does not allow a material to tolerate or perform well in the presence of moisture 
E) A bonding system that includes etching of both enamel and dentin as a separate step from the application of bonding agents 
A) An attribute that allows a material to tolerate the presence of moisture 
B) A bonding system that does not use a separate etching procedure with phosphoric acid 
C) A resin/dentin layer formed by the intermixing of the dentin bonding agent with collagen fibrils exposed by acid etching 
D) An attribute that does not allow a material to tolerate or perform well in the presence of moisture 
E) A bonding system that includes etching of both enamel and dentin as a separate step from the application of bonding agents

Silanes are used with which of the following dental materials?

Which of the following is true of the smear layer?

The most commonly used etchant or conditioner for tooth bonding is _____ in concentrations ranging from 10% to 38%.

When are posts placed within the roots of endodontically treated teeth to retain dental materials used to build up the teeth?

When a resin bonding agent hardens,it creates projections that lock into the tooth,creating a _ bond.The resin bonding agent will then form a _ bond to other resins placed over it,such as composite resin.

What is the purpose of a dental bonding?

Match the items with the correct description below. -Self-etch system

The primer portion of the dental bonding agent is _____ to water.

What is the wavelength of the curing light?

Match the items with the correct description below. -Hybrid layer

Which etch or tooth conditioner is used when seating or repairing ceramic restorations?

Which of the following materials would not be used when placing a direct resin restoration?

Excess water left from the etching procedure is removed by gentle drying with air:

The etched surface of a permanent tooth should have a/an _____ appearance when dried.

When acid etching for bonding,it is desirable to have a _ surface energy and a _ angle of contact.

Contaminants on the surface of the tooth can greatly affect the longevity of the restoration and may include:

What is done to the dentinal surface following etching?

Overdrying of the dentin after etching can cause:

Match the items with the correct description below. -Total-etch system

Introduction to Dental Materials

Oral Environment and Patient Considerations

Physical and Mechanical Properties of Dental Materials

General Handling and Safety of Dental Materials in the Dental Office

Composites, glass Ionomers, and Compomers

Preventive and Desensitizing Materials

Teeth Whitening Materials and Procedures

Dental Ceramics

Dental Amalgam

Casting Metals, solders, and Wrought Metal Alloys

Dental Implants

Abrasion, finishing, and Polishing

Dental Cement

Impression Materials

Gypsum and Wax Products

Polymers for Prosthetic Dentistry

Provisional Restorations

Preventive and Corrective Oral Appliances

Filters

Exam 5: Principles of Bonding

Silanes are used with which of the following dental materials?

Which of the following is true of the smear layer?

The most commonly used etchant or conditioner for tooth bonding is _____ in concentrations ranging from 10% to 38%.

When are posts placed within the roots of endodontically treated teeth to retain dental materials used to build up the teeth?

When a resin bonding agent hardens,it creates projections that lock into the tooth,creating a _____ bond.The resin bonding agent will then form a _____ bond to other resins placed over it,such as composite resin.

What is the purpose of a dental bonding?

Match the items with the correct description below. -Self-etch system

The primer portion of the dental bonding agent is _____ to water.

What is the wavelength of the curing light?

Match the items with the correct description below. -Hybrid layer

Which etch or tooth conditioner is used when seating or repairing ceramic restorations?

Which of the following materials would not be used when placing a direct resin restoration?

Excess water left from the etching procedure is removed by gentle drying with air:

The etched surface of a permanent tooth should have a/an _____ appearance when dried.

When acid etching for bonding,it is desirable to have a _____ surface energy and a _____ angle of contact.

Contaminants on the surface of the tooth can greatly affect the longevity of the restoration and may include:

What is done to the dentinal surface following etching?

Overdrying of the dentin after etching can cause:

Match the items with the correct description below. -Total-etch system

Introduction to Dental Materials

Oral Environment and Patient Considerations

Physical and Mechanical Properties of Dental Materials

General Handling and Safety of Dental Materials in the Dental Office

Composites, glass Ionomers, and Compomers

Preventive and Desensitizing Materials

Teeth Whitening Materials and Procedures

Dental Ceramics

Dental Amalgam

Casting Metals, solders, and Wrought Metal Alloys

Dental Implants

Abrasion, finishing, and Polishing

Dental Cement

Impression Materials

Gypsum and Wax Products

Polymers for Prosthetic Dentistry

Provisional Restorations

Preventive and Corrective Oral Appliances

Filters

When a resin bonding agent hardens,it creates projections that lock into the tooth,creating a _ bond.The resin bonding agent will then form a _ bond to other resins placed over it,such as composite resin.

When acid etching for bonding,it is desirable to have a _ surface energy and a _ angle of contact.