Question 1

Which of the following types of curing lights is currently the most popular?

Accepted Answer

A)  Plasma arc (PA
C)  
B)  Laser (initially argon laser) 
C)  Light-emitting diode (LE
D)  
D)  Halogen (quartz-tungsten-halogen,or QTH) 
A)  Plasma arc (PA
C)  
B)  Laser (initially argon laser) 
C)  Light-emitting diode (LE
D)  
D)  Halogen (quartz-tungsten-halogen,or QTH)

Question 2

For composite restorative materials,the greater the filler content,the _____ the coefficient of thermal expansion (CTE),and the greater the resin content,the _____ the CTE.

Accepted Answer

A)  greater;greater 
B)  greater;lower 
C)  lower;greater 
D)  lower;lower 
A)  greater;greater 
B)  greater;lower 
C)  lower;greater 
D)  lower;lower

Question 3

Which part of the tooth is generally closest to the dentin in color?

Accepted Answer

A)  Body 
B)  Cervical 
C)  Incisal area of anterior teeth 
D)  Occlusal area of posterior teeth 
A)  Body 
B)  Cervical 
C)  Incisal area of anterior teeth 
D)  Occlusal area of posterior teeth

Question 4

During incremental addition of composite resin,how will each additional increment bond to the previously placed increment of composite?

Accepted Answer

A)  If etchant is used between layers 
B)  If etchant and primer are used between layers 
C)  If etchant,primer,and bond agent are used between layers 
D)  If good isolation is maintained and no contaminants are introduced 
A)  If etchant is used between layers 
B)  If etchant and primer are used between layers 
C)  If etchant,primer,and bond agent are used between layers 
D)  If good isolation is maintained and no contaminants are introduced

Question 5

Composite resins are composed mainly of an organic resin matrix and inorganic silica filler particles joined together by a _____ coupling agent.

Accepted Answer

A)  silane 
B)  colloidal 
C)  surfactant 
D)  hydrophobic 
A)  silane 
B)  colloidal 
C)  surfactant 
D)  hydrophobic

Question 6

What is the best way to take a patient's color/shade?

Accepted Answer

A)  Using a shade guide 
B)  Moistening the teeth 
C)  Curing a small quantity to enamel 
D)  All are good choices. 
A)  Using a shade guide 
B)  Moistening the teeth 
C)  Curing a small quantity to enamel 
D)  All are good choices.

Question 7

Which of the following composite resin materials would not be used in non-stress-bearing areas?

Accepted Answer

A)  Macrofilled 
B)  Microfilled 
C)  Microhybrid 
A)  Macrofilled 
B)  Microfilled 
C)  Microhybrid

Question 8

Which of the following is a direct-placement esthetic material?

Accepted Answer

A)  Composite resin 
B)  Silver amalgam 
C)  Porcelain inlay 
D)  Full gold crown 
A)  Composite resin 
B)  Silver amalgam 
C)  Porcelain inlay 
D)  Full gold crown

Question 9

List the three different types of composite resins and describe how they each polymerize.

Accepted Answer

•Self-cured composite: Composite that po

Question 10

Match the items with the correct description below.
-Nano composite

Accepted Answer

A) A light-cured,low-viscosity composite resin that contains fewer filler particles 
B) An early generation of composite that contained filler particles ranging from 10 to 100 mm in diameter 
C) A composite that contains all nano-sized fillers to enhance physical properties 
D) A composite that contains both macrofill and microfill particles 
E) A composite that contains very small filler particles averaging 0.04 mm in diameter 
A) A light-cured,low-viscosity composite resin that contains fewer filler particles 
B) An early generation of composite that contained filler particles ranging from 10 to 100 mm in diameter 
C) A composite that contains all nano-sized fillers to enhance physical properties 
D) A composite that contains both macrofill and microfill particles 
E) A composite that contains very small filler particles averaging 0.04 mm in diameter

Question 11

Which procedures can glass ionomers be used for?

Accepted Answer

A)  Sealants 
B)  Cements 
C)  Restorations 
D)  All of the above 
A)  Sealants 
B)  Cements 
C)  Restorations 
D)  All of the above

Question 12

What is the recommended curing time for the proximal box of a class II composite restoration?

Accepted Answer

A)  10 to 30 seconds 
B)  20 to 40 seconds 
C)  40 to 60 seconds 
D)  60 to 80 seconds 
A)  10 to 30 seconds 
B)  20 to 40 seconds 
C)  40 to 60 seconds 
D)  60 to 80 seconds

Question 13

Which of the following is used to prepare the dentinal tooth surface for placement of glass ionomer cement?

Accepted Answer

A)  35% phosphoric acid 
B)  10% polyacrylic acid 
C)  A rotary cutting instrument such as a diamond bur 
D)  Nothing;it bonds to calcium without surface preparation. 
A)  35% phosphoric acid 
B)  10% polyacrylic acid 
C)  A rotary cutting instrument such as a diamond bur 
D)  Nothing;it bonds to calcium without surface preparation.

Question 14

Which of the following is correct regarding polymerization shrinkage of composite resin restorations?

Accepted Answer

A)  Microfills and flowables shrink less than hybrids and packables. 
B)  The greater the resin content of the composite,the less will be the shrinkage. 
C)  Recent research indicates that the composite resin material does not shrink toward the light. 
D)  When composite is placed and cured in a preparation that has two opposing walls,the composite will expand and push against the walls. 
A)  Microfills and flowables shrink less than hybrids and packables. 
B)  The greater the resin content of the composite,the less will be the shrinkage. 
C)  Recent research indicates that the composite resin material does not shrink toward the light. 
D)  When composite is placed and cured in a preparation that has two opposing walls,the composite will expand and push against the walls.

Question 15

What is the curing time for a curing light with a halogen bulb?

Accepted Answer

A)  10 to 15 seconds 
B)  15 to 30 seconds 
C)  20 to 40 seconds 
D)  Per manufacturer's instructions 
A)  10 to 15 seconds 
B)  15 to 30 seconds 
C)  20 to 40 seconds 
D)  Per manufacturer's instructions

Question 16

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

Accepted Answer

A) A light-cured,low-viscosity composite resin that contains fewer filler particles 
B) An early generation of composite that contained filler particles ranging from 10 to 100 mm in diameter 
C) A composite that contains all nano-sized fillers to enhance physical properties 
D) A composite that contains both macrofill and microfill particles 
E) A composite that contains very small filler particles averaging 0.04 mm in diameter 
A) A light-cured,low-viscosity composite resin that contains fewer filler particles 
B) An early generation of composite that contained filler particles ranging from 10 to 100 mm in diameter 
C) A composite that contains all nano-sized fillers to enhance physical properties 
D) A composite that contains both macrofill and microfill particles 
E) A composite that contains very small filler particles averaging 0.04 mm in diameter

Question 17

Which of the following materials is fluoride releasing?

Accepted Answer

A)  Porcelain 
B)  Glass ionomer 
C)  Composite resin 
A)  Porcelain 
B)  Glass ionomer 
C)  Composite resin

Which of the following types of curing lights is currently the most popular?

For composite restorative materials,the greater the filler content,the _ the coefficient of thermal expansion (CTE),and the greater the resin content,the _ the CTE.

Which part of the tooth is generally closest to the dentin in color?

During incremental addition of composite resin,how will each additional increment bond to the previously placed increment of composite?

Composite resins are composed mainly of an organic resin matrix and inorganic silica filler particles joined together by a _____ coupling agent.

What is the best way to take a patient's color/shade?

Which of the following composite resin materials would not be used in non-stress-bearing areas?

Which of the following is a direct-placement esthetic material?

List the three different types of composite resins and describe how they each polymerize.

Match the items with the correct description below. -Nano composite

Which procedures can glass ionomers be used for?

What is the recommended curing time for the proximal box of a class II composite restoration?

Which of the following is used to prepare the dentinal tooth surface for placement of glass ionomer cement?

Which of the following is correct regarding polymerization shrinkage of composite resin restorations?

What is the curing time for a curing light with a halogen bulb?

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

Which of the following materials is fluoride releasing?

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

Principles of Bonding

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 6: Composites, glass Ionomers, and Compomers

Which of the following types of curing lights is currently the most popular?

For composite restorative materials,the greater the filler content,the _____ the coefficient of thermal expansion (CTE),and the greater the resin content,the _____ the CTE.

Which part of the tooth is generally closest to the dentin in color?

During incremental addition of composite resin,how will each additional increment bond to the previously placed increment of composite?

Composite resins are composed mainly of an organic resin matrix and inorganic silica filler particles joined together by a _____ coupling agent.

What is the best way to take a patient's color/shade?

Which of the following composite resin materials would not be used in non-stress-bearing areas?

Which of the following is a direct-placement esthetic material?

List the three different types of composite resins and describe how they each polymerize.

Match the items with the correct description below. -Nano composite

Which procedures can glass ionomers be used for?

What is the recommended curing time for the proximal box of a class II composite restoration?

Which of the following is used to prepare the dentinal tooth surface for placement of glass ionomer cement?

Which of the following is correct regarding polymerization shrinkage of composite resin restorations?

What is the curing time for a curing light with a halogen bulb?

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

Which of the following materials is fluoride releasing?

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

Principles of Bonding

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

For composite restorative materials,the greater the filler content,the _ the coefficient of thermal expansion (CTE),and the greater the resin content,the _ the CTE.