Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
TEST BANK
Dental Materials
Foundations and Applications
John M. Powers, John C. Wataha
11th Edition
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
Table of Contents
1.Introduction to Restorative Dental Materials
2.Properties of Dental Materials
3.Preventive Dental Materials
4.Direct Esthetic Restorative Materials
5.Dental Amalgam
6.Finishing, Polishing, and Cleansing Materials
7.Cements
8.Impression Materials
9.Model and Die Materials
10.Waxes
11.Casting Alloys, Wrought Alloys, and Solders
12.Casting, Soldering, and Welding
13.Polymers in Prosthodontics
14.Dental Ceramics
15.Dental Implants
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
Chapter 01: Introduction to Restorative Dental Materials
Powers: Dental Materials, 11th Edition
MULTIPLE CHOICE
1. What causes caries?
a. Food debris
b. Materia alba
c. Acidic foodstuff
d. Bacterial plaque
e. Salivary glycoproteins
ANS: D
Feedback
A Food debris does not have the structural organization of bacterial plaque
biofilm.
B Materia alba does not have the structural organization of bacterial plaque
biofilm.
C Acidic foodstuff lowers pH and may demineralize teeth but does not directly
cause decay.
D Caries is caused by biofilm; also known as bacterial plaque.
E Salivary glycoproteins form the acquired enamel pellicle to which bacteria
adhere.
DIF: Knowledge REF: p. 1 OBJ: 2
TOP: CDA, GC, V, A,1b. Patient Education and Oral Health Management
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.1 Properties and Manipulation of
Materials
2. Caries is most likely to occur on which of the following tooth surfaces?
a. Buccal
b. Lingual
c. Occlusal
d. Interproximal
e. C and D are both correct.
ANS: E
Feedback
A Buccal surfaces are also susceptible to caries; however, there is less surface area
left unchecked.
B Lingual surfaces are also susceptible to caries; however, there is less surface
area left unchecked.
C Caries is most likely to occur in pits and fissures on the occlusal surface and on
interproximal tooth surfaces where plaque accumulates unchecked.
D Caries is most likely to occur in pits and fissures on the occlusal surface and on
interproximal tooth surfaces where plaque accumulates unchecked.
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
E Caries is most likely to occur in pits and fissures on the occlusal surface and on
interproximal tooth surfaces where plaque accumulates unchecked.
DIF: Knowledge REF: p. 1 OBJ: 2
TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials,
including but not limited to a. amalgam, c. composites
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
3. Which of the following is an intracoronal restoration?
a. Ceramic–alloy crown on tooth number 21
b. Ceramic veneer on tooth number 8
c. Ceramic onlay on tooth number 30
d. Ceramic inlay on tooth number 14
ANS: D
Feedback
A The alternate choices are all extracoronal restorations used to repair the external.
B The alternate choices are all extracoronal restorations used to repair the external.
C The alternate choices are all extracoronal restorations used to repair the external.
D A ceramic inlay on tooth number 14 is an example of an intracoronal restoration,
meaning that the restoration is being used to repair damage restricted to the
internal parts of a tooth. Materials such as amalgam and composite resin are
used in addition to ceramic or cast metal.
DIF: Knowledge REF: p. 4 OBJ: 3
TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials,
including but not limited to a. amalgam, c. composites
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
4. What is the process called where decay is removed from the tooth in order for a restoration to
be placed?
a. Cavity preparation
b. Convenience form
c. Margination
d. Extension
ANS: A
Feedback
A The process is referred to as cavity preparation. Cavity preparation is used to
remove diseased or damaged tissue and provide a space accessible for
restoration and one that can stably retain the restoration.
B Convenience form is a term describing the nature of the cavity preparation.
C Extension is a term describing the nature of the cavity preparation.
D Margination is the procedure for finishing the margins of a restoration.
DIF: Knowledge REF: p. 4 OBJ: 2
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
5. Which of the following is an example of an intracoronal (direct) restoration?
a. Laboratory-cured composite
b. Dental amalgam
c. Ceramic veneer
d. Cast crown
ANS: B
Feedback
A Laboratory-cured composite is a restoration that is constructed away from the
patient in the dental laboratory.
B Dental amalgam is an example of a direct restoration. All of the other
restorations are prepared away from the tooth and then cemented or bonded to
the tooth using a procedure that is independent of the manufacturer of the
restoration.
C Ceramic veneer is a restoration that is constructed away from the patient in the
dental laboratory.
D Cast crown is a restoration that is constructed away from the patient in the
dental laboratory.
DIF: Knowledge REF: p. 4 OBJ: 3
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
6. Which of the following is an example of an extracoronal restoration? Choose all that apply.
a. Ceramic inlay
b. Ceramic–alloy crown
c. Porcelain jacket crown
d. A, B, and C
e. A and C
ANS: D
Feedback
A All three restorations involve lab procedures and are examples of indirect
restorations.
B All three restorations involve lab procedures and are examples of indirect
restorations.
C All three restorations involve lab procedures and are examples of indirect
restorations.
D All three restorations involve lab procedures and are examples of indirect
restorations.
E All three restorations involve lab procedures and are examples of indirect
restorations.
DIF: Knowledge REF: p. 5 OBJ: 3
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
7. Which of the following is an example of an extracoronal restoration?
a. Disto-occlusal ceramic inlay on tooth number 29
b. Buccal Cl. V composite resin on tooth number 31
c. Mesio-occlusal gold onlay on tooth number 15
d. Mesio-occlusal amalgam on tooth number 13
ANS: C
Feedback
A This is an example of intracoronal restoration because it fits within the internal
borders of the anatomical crown.
B This is an example of intracoronal restoration because it fits within the internal
borders of the anatomical crown.
C An onlay involves an inlay with extension to cover or protect a cusp. Thus a
mesio-occlusal gold onlay on tooth number 15 is an example of an extracoronal
restoration.
D This is an example of intracoronal restoration because it fits within the internal
borders of the anatomical crown.
DIF: Knowledge REF: p. 5 OBJ: 3
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
8. Which material is used to fill the root canal once all of the pulpal tissue has been removed?
a. Silver point
b. Paper points
c. Dental cement
d. Moisture-resistant sealer
ANS: D
Feedback
A Silver master points are no longer used to fill canals.
B Paper points are used to dry the canal after irrigation.
C Dental cements may be used to seal the access opening but are not suited to fill
the canals.
D The space created when the pulpal tissues are removed must be replaced with
sealers that prevent ingress of bacteria that comes with moisture.
DIF: Knowledge REF: p. 5 OBJ: 4
TOP: CDA, GC, II. B.2. h. Select and describe how to prepare tray setups and all necessary
armamentaria for chairside dentistry and dental emergency procedures, including but not limited to h.
endodontic therapy MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
9. A(n) ____________ is also known as a bridge.
a. removable partial denture
b. fixed partial denture
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
c. abutment
d. pontic
ANS: B
Feedback
A A removable partial denture may be removed by the patient and is not known as
a bridge.
B A fixed (cemented) partial denture is commonly known as a bridge. The crown
preparation portions of the bridge are called abutments, and the missing tooth
replacement is called the pontic.
C An abutment is an individual component of a fixed partial denture and is not
known as a bridge.
D A pontic is an individual component of a fixed partial denture and is not known
as a bridge.
DIF: Knowledge REF: p. 9 OBJ: 5
TOP: CDA, GC, II. B.2. e. Select and describe how to prepare tray setups and all necessary
armamentaria for chairside dentistry and dental emergency procedures, including but not limited to e.
crown and bridge MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
10. A resin-bonded fixed partial denture is sometimes used under which conditions?
a. Bridge has only one abutment.
b. Abutment teeth have been endodontically treated.
c. Abutment teeth are healthy and free of major restorations.
d. The bridge has a long span involving more than four teeth.
ANS: C
Feedback
A Placement of crowns on the abutment teeth requires substantial sacrifice of tooth
structure regardless of the condition of the abutment tooth.
B Endodontically treated teeth become brittle over time once the blood supply has
been removed. The teeth need additional reinforcement.
C A resin-bonded fixed partial denture may be used when the abutment teeth are
healthy and free of major restorations. Case selection is critical, because
retention problems may occur with this type of restoration.
D Long span bridges require a significant amount of retention. A resin-bonded
fixed partial, bridge.
DIF: Knowledge REF: p. 10 OBJ: 5
TOP: CDA, GC, II. B.2. h. Select and describe how to prepare tray setups and all necessary
armamentaria for chairside dentistry and dental emergency procedures, including but not limited to e.
crown and bridge preparation/cementation
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
11. The _________ of a fixed partial denture fills the edentulous space.
a. pontic
b. obturator
TEST BANK
Dental Materials
Foundations and Applications
John M. Powers, John C. Wataha
11th Edition
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
Table of Contents
1.Introduction to Restorative Dental Materials
2.Properties of Dental Materials
3.Preventive Dental Materials
4.Direct Esthetic Restorative Materials
5.Dental Amalgam
6.Finishing, Polishing, and Cleansing Materials
7.Cements
8.Impression Materials
9.Model and Die Materials
10.Waxes
11.Casting Alloys, Wrought Alloys, and Solders
12.Casting, Soldering, and Welding
13.Polymers in Prosthodontics
14.Dental Ceramics
15.Dental Implants
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
Chapter 01: Introduction to Restorative Dental Materials
Powers: Dental Materials, 11th Edition
MULTIPLE CHOICE
1. What causes caries?
a. Food debris
b. Materia alba
c. Acidic foodstuff
d. Bacterial plaque
e. Salivary glycoproteins
ANS: D
Feedback
A Food debris does not have the structural organization of bacterial plaque
biofilm.
B Materia alba does not have the structural organization of bacterial plaque
biofilm.
C Acidic foodstuff lowers pH and may demineralize teeth but does not directly
cause decay.
D Caries is caused by biofilm; also known as bacterial plaque.
E Salivary glycoproteins form the acquired enamel pellicle to which bacteria
adhere.
DIF: Knowledge REF: p. 1 OBJ: 2
TOP: CDA, GC, V, A,1b. Patient Education and Oral Health Management
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.1 Properties and Manipulation of
Materials
2. Caries is most likely to occur on which of the following tooth surfaces?
a. Buccal
b. Lingual
c. Occlusal
d. Interproximal
e. C and D are both correct.
ANS: E
Feedback
A Buccal surfaces are also susceptible to caries; however, there is less surface area
left unchecked.
B Lingual surfaces are also susceptible to caries; however, there is less surface
area left unchecked.
C Caries is most likely to occur in pits and fissures on the occlusal surface and on
interproximal tooth surfaces where plaque accumulates unchecked.
D Caries is most likely to occur in pits and fissures on the occlusal surface and on
interproximal tooth surfaces where plaque accumulates unchecked.
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
E Caries is most likely to occur in pits and fissures on the occlusal surface and on
interproximal tooth surfaces where plaque accumulates unchecked.
DIF: Knowledge REF: p. 1 OBJ: 2
TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials,
including but not limited to a. amalgam, c. composites
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
3. Which of the following is an intracoronal restoration?
a. Ceramic–alloy crown on tooth number 21
b. Ceramic veneer on tooth number 8
c. Ceramic onlay on tooth number 30
d. Ceramic inlay on tooth number 14
ANS: D
Feedback
A The alternate choices are all extracoronal restorations used to repair the external.
B The alternate choices are all extracoronal restorations used to repair the external.
C The alternate choices are all extracoronal restorations used to repair the external.
D A ceramic inlay on tooth number 14 is an example of an intracoronal restoration,
meaning that the restoration is being used to repair damage restricted to the
internal parts of a tooth. Materials such as amalgam and composite resin are
used in addition to ceramic or cast metal.
DIF: Knowledge REF: p. 4 OBJ: 3
TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials,
including but not limited to a. amalgam, c. composites
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
4. What is the process called where decay is removed from the tooth in order for a restoration to
be placed?
a. Cavity preparation
b. Convenience form
c. Margination
d. Extension
ANS: A
Feedback
A The process is referred to as cavity preparation. Cavity preparation is used to
remove diseased or damaged tissue and provide a space accessible for
restoration and one that can stably retain the restoration.
B Convenience form is a term describing the nature of the cavity preparation.
C Extension is a term describing the nature of the cavity preparation.
D Margination is the procedure for finishing the margins of a restoration.
DIF: Knowledge REF: p. 4 OBJ: 2
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
5. Which of the following is an example of an intracoronal (direct) restoration?
a. Laboratory-cured composite
b. Dental amalgam
c. Ceramic veneer
d. Cast crown
ANS: B
Feedback
A Laboratory-cured composite is a restoration that is constructed away from the
patient in the dental laboratory.
B Dental amalgam is an example of a direct restoration. All of the other
restorations are prepared away from the tooth and then cemented or bonded to
the tooth using a procedure that is independent of the manufacturer of the
restoration.
C Ceramic veneer is a restoration that is constructed away from the patient in the
dental laboratory.
D Cast crown is a restoration that is constructed away from the patient in the
dental laboratory.
DIF: Knowledge REF: p. 4 OBJ: 3
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
6. Which of the following is an example of an extracoronal restoration? Choose all that apply.
a. Ceramic inlay
b. Ceramic–alloy crown
c. Porcelain jacket crown
d. A, B, and C
e. A and C
ANS: D
Feedback
A All three restorations involve lab procedures and are examples of indirect
restorations.
B All three restorations involve lab procedures and are examples of indirect
restorations.
C All three restorations involve lab procedures and are examples of indirect
restorations.
D All three restorations involve lab procedures and are examples of indirect
restorations.
E All three restorations involve lab procedures and are examples of indirect
restorations.
DIF: Knowledge REF: p. 5 OBJ: 3
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
7. Which of the following is an example of an extracoronal restoration?
a. Disto-occlusal ceramic inlay on tooth number 29
b. Buccal Cl. V composite resin on tooth number 31
c. Mesio-occlusal gold onlay on tooth number 15
d. Mesio-occlusal amalgam on tooth number 13
ANS: C
Feedback
A This is an example of intracoronal restoration because it fits within the internal
borders of the anatomical crown.
B This is an example of intracoronal restoration because it fits within the internal
borders of the anatomical crown.
C An onlay involves an inlay with extension to cover or protect a cusp. Thus a
mesio-occlusal gold onlay on tooth number 15 is an example of an extracoronal
restoration.
D This is an example of intracoronal restoration because it fits within the internal
borders of the anatomical crown.
DIF: Knowledge REF: p. 5 OBJ: 3
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
8. Which material is used to fill the root canal once all of the pulpal tissue has been removed?
a. Silver point
b. Paper points
c. Dental cement
d. Moisture-resistant sealer
ANS: D
Feedback
A Silver master points are no longer used to fill canals.
B Paper points are used to dry the canal after irrigation.
C Dental cements may be used to seal the access opening but are not suited to fill
the canals.
D The space created when the pulpal tissues are removed must be replaced with
sealers that prevent ingress of bacteria that comes with moisture.
DIF: Knowledge REF: p. 5 OBJ: 4
TOP: CDA, GC, II. B.2. h. Select and describe how to prepare tray setups and all necessary
armamentaria for chairside dentistry and dental emergency procedures, including but not limited to h.
endodontic therapy MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
9. A(n) ____________ is also known as a bridge.
a. removable partial denture
b. fixed partial denture
, Dental Materials: Foundations and Applications 11th Edition (Powers, 2017) - Test Bank
c. abutment
d. pontic
ANS: B
Feedback
A A removable partial denture may be removed by the patient and is not known as
a bridge.
B A fixed (cemented) partial denture is commonly known as a bridge. The crown
preparation portions of the bridge are called abutments, and the missing tooth
replacement is called the pontic.
C An abutment is an individual component of a fixed partial denture and is not
known as a bridge.
D A pontic is an individual component of a fixed partial denture and is not known
as a bridge.
DIF: Knowledge REF: p. 9 OBJ: 5
TOP: CDA, GC, II. B.2. e. Select and describe how to prepare tray setups and all necessary
armamentaria for chairside dentistry and dental emergency procedures, including but not limited to e.
crown and bridge MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
10. A resin-bonded fixed partial denture is sometimes used under which conditions?
a. Bridge has only one abutment.
b. Abutment teeth have been endodontically treated.
c. Abutment teeth are healthy and free of major restorations.
d. The bridge has a long span involving more than four teeth.
ANS: C
Feedback
A Placement of crowns on the abutment teeth requires substantial sacrifice of tooth
structure regardless of the condition of the abutment tooth.
B Endodontically treated teeth become brittle over time once the blood supply has
been removed. The teeth need additional reinforcement.
C A resin-bonded fixed partial denture may be used when the abutment teeth are
healthy and free of major restorations. Case selection is critical, because
retention problems may occur with this type of restoration.
D Long span bridges require a significant amount of retention. A resin-bonded
fixed partial, bridge.
DIF: Knowledge REF: p. 10 OBJ: 5
TOP: CDA, GC, II. B.2. h. Select and describe how to prepare tray setups and all necessary
armamentaria for chairside dentistry and dental emergency procedures, including but not limited to e.
crown and bridge preparation/cementation
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
11. The _________ of a fixed partial denture fills the edentulous space.
a. pontic
b. obturator
