Question 1

Which type of ceramic is applied to the ceramic-alloy restoration in order to hide the color of the alloy?

Accepted Answer

A)  Gingival 
B)  Opaque 
C)  Incisal 
D)  Body 
E)  Glaze 
A)  Gingival 
B)  Opaque 
C)  Incisal 
D)  Body 
E)  Glaze B

Question 2

Compare and contrast traditional ceramic restorations with machine-milled ceramic restorations. Give advantages and disadvantages of each.

Accepted Answer

Feldspathic ceramics (porcelains) are glassy ceramics that form from the combination of feldspar, silica, and alumina; feldspathic ceramics are the oldest of the dental ceramics and are very esthetic but relatively weak. Fabrication is a multiple step technique that requires the patient to schedule two or more appointments. These types of ceramic restorations are difficult to repair if broken. Esthetically they are superior.
Ceramic restorations constructed using the milling process takes only one appointment. The tooth may be prepared, scanned using a CAD/CAM software, and milled within a couple of hours. Overall success rate is high, although if the patient has a ceramic core on the tooth, the restoration may debond.

Question 3

The light source is critical for proper color matching because it has a major influence on how color appears to an observer. What is this principle?

Accepted Answer

A)  Reflectance 
B)  Translucence 
C)  Metamerism 
D)  Transmittance 
A)  Reflectance 
B)  Translucence 
C)  Metamerism 
D)  Transmittance C

Question 4

Which statement is true when contrasting ceramic inlays and composite to esthetically restore small posterior lesions?

Accepted Answer

A)  Composites require more chair time. 
B)  Ceramic inlays use a less aggressive tooth preparation. 
C)  Ceramic inlays require more manipulation of materials by the practitioner. 
D)  Composites are less customizable in terms of shade, shape, and restoration design. 
A)  Composites require more chair time. 
B)  Ceramic inlays use a less aggressive tooth preparation. 
C)  Ceramic inlays require more manipulation of materials by the practitioner. 
D)  Composites are less customizable in terms of shade, shape, and restoration design.

Question 5

The fusing temperature of a medium-fusing dental ceramic is _____° C to _____° C.

Accepted Answer

A)  871; 1066 
B)  1093; 1260 
C)  1288; 1371 
D)  1400; 1731 
A)  871; 1066 
B)  1093; 1260 
C)  1288; 1371 
D)  1400; 1731

Question 6

Amorphous ceramic phases are stronger and less soluble than crystalline phases. A pure amorphous phase is transparent, like window glass.

Accepted Answer

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

Question 7

What is the amount of lightness or darkness of a ceramic restoration called?

Accepted Answer

A)  Hue 
B)  Color 
C)  Value 
D)  Chroma 
A)  Hue 
B)  Color 
C)  Value 
D)  Chroma

Question 8

_________ ceramics are the oldest of the dental ceramics and very esthetic, but they are relatively weak.

Accepted Answer

A)  Leucite 
B)  Crystalline 
C)  Feldspathic 
D)  Amorphous 
A)  Leucite 
B)  Crystalline 
C)  Feldspathic 
D)  Amorphous

Question 9

What is one of the newest applications for dental ceramics?

Accepted Answer

A)  Implant abutments 
B)  Multi-unit bridges 
C)  Denture teeth 
D)  A, B, and C are all new applications for dental ceramics. 
A)  Implant abutments 
B)  Multi-unit bridges 
C)  Denture teeth 
D)  A, B, and C are all new applications for dental ceramics.

Question 10

What is(are) the primary ingredient(s) of dental porcelain?

Accepted Answer

A)  Silica 
B)  Quartz 
C)  Feldspar 
D)  A and B are correct. 
E)  A and C are correct. 
A)  Silica 
B)  Quartz 
C)  Feldspar 
D)  A and B are correct. 
E)  A and C are correct.

Question 11

The ceramic should have a coefficient of thermal expansion _________ than that of the alloy in most cases.

Accepted Answer

A)  significantly greater 
B)  significantly less 
C)  slightly greater 
D)  slightly less 
A)  significantly greater 
B)  significantly less 
C)  slightly greater 
D)  slightly less

Question 12

Identify the three color factors assessed in teeth, and explain why each is important to esthetics.

Accepted Answer

Color results when a material reflects l

Question 13

Which properties listed is(are) correct regarding ceramics?

Accepted Answer

A)  Are opaque 
B)  Are translucent 
C)  Have low corrosion and wear 
D)  A and C 
E)  B and C 
A)  Are opaque 
B)  Are translucent 
C)  Have low corrosion and wear 
D)  A and C 
E)  B and C

Question 14

Which of the following are limitations of all-ceramic restorations when contrasted with ceramic-alloy restorations?

Accepted Answer

A)  They will fracture in service more often than ceramic-alloy restorations. 
B)  The fit of many all-ceramic restorations is not as precise as their ceramic-alloy counterparts. 
C)  All-ceramic restorations require the removal of more tooth structure than ceramic-alloy restorations. 
D)  A, B, and C are all limitations. 
E)  Only A and B are limitations. 
A)  They will fracture in service more often than ceramic-alloy restorations. 
B)  The fit of many all-ceramic restorations is not as precise as their ceramic-alloy counterparts. 
C)  All-ceramic restorations require the removal of more tooth structure than ceramic-alloy restorations. 
D)  A, B, and C are all limitations. 
E)  Only A and B are limitations.

Question 15

The terms ceramic and porcelain are often used interchangeably. Porcelain is a type of ceramic that results when feldspar, silica, and alumina are fired together with fluxes.

Accepted Answer

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

Question 16

Ceramic inlays are generally cemented using ____________ cements.

Accepted Answer

A)  zinc polycarboxylate 
B)  zinc oxide-eugenol 
C)  zinc phosphate 
D)  resin-based 
A)  zinc polycarboxylate 
B)  zinc oxide-eugenol 
C)  zinc phosphate 
D)  resin-based

Question 17

Which of the following statements is true regarding the color of ceramics?

Accepted Answer

A)  Hue is the intensity of the color. 
B)  A low chroma indicates grayness. 
C)  Value is the basic shade of the color. 
D)  Chroma is the amount of lightness or darkness. 
A)  Hue is the intensity of the color. 
B)  A low chroma indicates grayness. 
C)  Value is the basic shade of the color. 
D)  Chroma is the amount of lightness or darkness.

Question 18

When would a high-fusing type of dental ceramics be used?

Accepted Answer

A)  Fabricate some all-ceramic restorations 
B)  Make some all-ceramic restorations 
C)  Fabricate porcelain-jacket crowns 
D)  Make ceramic-alloy restorations 
E)  Make denture teeth 
A)  Fabricate some all-ceramic restorations 
B)  Make some all-ceramic restorations 
C)  Fabricate porcelain-jacket crowns 
D)  Make ceramic-alloy restorations 
E)  Make denture teeth

Question 19

What will a high-flexural-strength ceramic suggest?

Accepted Answer

A)  Better resist fracture 
B)  Be susceptible to fracture 
C)  Have a low clinical survival rate 
D)  Only A and C 
E)  Only B and C 
A)  Better resist fracture 
B)  Be susceptible to fracture 
C)  Have a low clinical survival rate 
D)  Only A and C 
E)  Only B and C

Question 20

Ceramic veneers are used most often on ______________ teeth.

Accepted Answer

A)  maxillary anterior 
B)  maxillary posterior 
C)  mandibular anterior 
D)  mandibular posterior 
A)  maxillary anterior 
B)  maxillary posterior 
C)  mandibular anterior 
D)  mandibular posterior

Which type of ceramic is applied to the ceramic-alloy restoration in order to hide the color of the alloy?

Compare and contrast traditional ceramic restorations with machine-milled ceramic restorations. Give advantages and disadvantages of each.

The light source is critical for proper color matching because it has a major influence on how color appears to an observer. What is this principle?

Which statement is true when contrasting ceramic inlays and composite to esthetically restore small posterior lesions?

The fusing temperature of a medium-fusing dental ceramic is _° C to _° C.

Amorphous ceramic phases are stronger and less soluble than crystalline phases. A pure amorphous phase is transparent, like window glass.

What is the amount of lightness or darkness of a ceramic restoration called?

_________ ceramics are the oldest of the dental ceramics and very esthetic, but they are relatively weak.

What is one of the newest applications for dental ceramics?

What is(are) the primary ingredient(s) of dental porcelain?

The ceramic should have a coefficient of thermal expansion _________ than that of the alloy in most cases.

Identify the three color factors assessed in teeth, and explain why each is important to esthetics.

Which properties listed is(are) correct regarding ceramics?

Which of the following are limitations of all-ceramic restorations when contrasted with ceramic-alloy restorations?

The terms ceramic and porcelain are often used interchangeably. Porcelain is a type of ceramic that results when feldspar, silica, and alumina are fired together with fluxes.

Ceramic inlays are generally cemented using ____________ cements.

Which of the following statements is true regarding the color of ceramics?

When would a high-fusing type of dental ceramics be used?

What will a high-flexural-strength ceramic suggest?

Ceramic veneers are used most often on ______________ teeth.

Introduction to Restorative Dental Materials

Properties of Materials

Preventive Dental Materials

Direct Esthetic Restorative Materials

Dental Amalgam

Finishing, Polishing, and Cleansing Materials

Cements

Impression Materials

Model and Die Materials

Waxes

Casting Alloys, Wrought Alloys, and Solders

Casting, Soldering, and Welding

Polymers in Prosthodontics

Dental Implants

Filters

Exam 14: Dental Ceramics

Which type of ceramic is applied to the ceramic-alloy restoration in order to hide the color of the alloy?

Compare and contrast traditional ceramic restorations with machine-milled ceramic restorations. Give advantages and disadvantages of each.

The light source is critical for proper color matching because it has a major influence on how color appears to an observer. What is this principle?

Which statement is true when contrasting ceramic inlays and composite to esthetically restore small posterior lesions?

The fusing temperature of a medium-fusing dental ceramic is _____° C to _____° C.

Amorphous ceramic phases are stronger and less soluble than crystalline phases. A pure amorphous phase is transparent, like window glass.

What is the amount of lightness or darkness of a ceramic restoration called?

_________ ceramics are the oldest of the dental ceramics and very esthetic, but they are relatively weak.

What is one of the newest applications for dental ceramics?

What is(are) the primary ingredient(s) of dental porcelain?

The ceramic should have a coefficient of thermal expansion _________ than that of the alloy in most cases.

Identify the three color factors assessed in teeth, and explain why each is important to esthetics.

Which properties listed is(are) correct regarding ceramics?

Which of the following are limitations of all-ceramic restorations when contrasted with ceramic-alloy restorations?

The terms ceramic and porcelain are often used interchangeably. Porcelain is a type of ceramic that results when feldspar, silica, and alumina are fired together with fluxes.

Ceramic inlays are generally cemented using ____________ cements.

Which of the following statements is true regarding the color of ceramics?

When would a high-fusing type of dental ceramics be used?

What will a high-flexural-strength ceramic suggest?

Ceramic veneers are used most often on ______________ teeth.

Introduction to Restorative Dental Materials

Properties of Materials

Preventive Dental Materials

Direct Esthetic Restorative Materials

Dental Amalgam

Finishing, Polishing, and Cleansing Materials

Cements

Impression Materials

Model and Die Materials

Waxes

Casting Alloys, Wrought Alloys, and Solders

Casting, Soldering, and Welding

Polymers in Prosthodontics

Dental Implants

Filters

The fusing temperature of a medium-fusing dental ceramic is _° C to _° C.