,Chapter 01: Introduction to Restorative Dental Materials Powers:
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Dental Materials, 11th Edition
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MULTIPLE CHOICE l
1. What causes caries?
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a. Food debris l
b. Materia alba l
c. Acidic foodstuff l
d. Bacterial plaque l
e. Salivary glycoproteins l
ANS: D l
Feedback
A Food debris does not have the structural organization of bacterial plaque biofilm.
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B Materia alba does not have the structural organization of bacterial plaque biofilm.
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C Acidic foodstuff lowers pH and may demineralize teeth but does not directly
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cause decay.
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D Caries is caused by biofilm; also known as bacterial plaque.
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E Salivary glycoproteins form the acquired enamel pellicle to which bacteria
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adhere.
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DIF: Knowledge REF: p. 1 OBJ: 2 l l l l l l
TOP: CDA, GC, V, A,1b. Patient Education and Oral Health Management
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MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.1 Properties and Manipulation of
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Materials
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2. Caries is most likely to occur on which of the following tooth surfaces?
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a. Buccal
b. Lingual
c. Occlusal
d. Interproximal
e. C and D are both correct.
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ANS: E l
Feedback
A Buccal surfaces are also susceptible to caries; however, there is less surface area left
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unchecked.
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B Lingual surfaces are also susceptible to caries; however, there is less surface area
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left unchecked.
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C Caries is most likely to occur in pits and fissures on the occlusal surface and on
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interproximal tooth surfaces where plaque accumulates unchecked.
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D Caries is most likely to occur in pits and fissures on the occlusal surface and on
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interproximal tooth surfaces where plaque accumulates unchecked.
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, E Caries is most likely to occur in pits and fissures on the occlusal surface and on
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interproximal tooth surfaces where plaque accumulates unchecked.
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DIF: Knowledge REF: p. 1 OBJ: 2 l l l l l l
TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials,
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including but not limited to a. amalgam, c. composites
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MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
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3. Which of the following is an intracoronal restoration?
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a. Ceramic–alloy crown on tooth number 21 l l l l l
b. Ceramic veneer on tooth number 8 l l l l l
c. Ceramic onlay on tooth number 30 l l l l l
d. Ceramic inlay on tooth number 14 l l l l l
ANS: D l
Feedback
A The alternate choices are all extracoronal restorations used to repair the external.
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B The alternate choices are all extracoronal restorations used to repair the external.
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C The alternate choices are all extracoronal restorations used to repair the external.
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D A ceramic inlay on tooth number 14 is an example of an intracoronal restoration,
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meaning that the restoration is being used to repair damage restricted to the
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internal parts of a tooth. Materials such as amalgam and composite resin are used
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in addition to ceramic or cast metal.
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DIF: Knowledge REF: p. 4 OBJ: 3 l l l l l l
TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials,
l l l l l l l l l l l l l l l
including but not limited to a. amalgam, c. composites
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MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
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4. What is the process called where decay is removed from the tooth in order for a restoration to be
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placed?
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a. Cavity preparation l
b. Convenience form l
c. Margination
d. Extension
ANS: A l
Feedback
A The process is referred to as cavity preparation. Cavity preparation is used to
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remove diseased or damaged tissue and provide a space accessible for
l l l l l l l l l l l
restoration and one that can stably retain the restoration.
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B Convenience form is a term describing the nature of the cavity preparation. l l l l l l l l l l l
C Extension is a term describing the nature of the cavity preparation.
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D Margination is the procedure for finishing the margins of a restoration. l l l l l l l l l l
DIF: Knowledge REF: p. l l l l 4 OBJ: l l 2
, TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials MSC:
l l l l l l l l l l l l l l
NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
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5. Which of the following is an example of an intracoronal (direct) restoration?
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a. Laboratory-cured composite l
b. Dental amalgam l
c. Ceramic veneer l
d. Cast crown l
ANS: B l
Feedback
A Laboratory-cured composite is a restoration that is constructed away from the l l l l l l l l l l
patient in the dental laboratory.
l l l l l
B Dental amalgam is an example of a direct restoration. All of the other restorations
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are prepared away from the tooth and then cemented or bonded to the tooth using
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a procedure that is independent of the manufacturer of the restoration.
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C Ceramic veneer is a restoration that is constructed away from the patient in the dental
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laboratory.
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D Cast crown is a restoration that is constructed away from the patient in the dental
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laboratory.
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DIF: Knowledge REF: p. 4 OBJ: 3 l l l l l l
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials MSC:
l l l l l l l l l l l l l l
NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
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6. Which of the following is an example of an extracoronal restoration? Choose all that apply.
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a. Ceramic inlay l
b. Ceramic–alloy crown l
c. Porcelain jacket crown l l
d. A, B, and C l l l
e. A and C
l l
ANS: D l
Feedback
A All three restorations involve lab procedures and are examples of indirect
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restorations.
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B All three restorations involve lab procedures and are examples of indirect
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restorations.
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C All three restorations involve lab procedures and are examples of indirect
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restorations.
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D All three restorations involve lab procedures and are examples of indirect
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restorations.
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E All three restorations involve lab procedures and are examples of indirect
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restorations.
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DIF: Knowledge REF: p. l l l l 5 OBJ: l l 3
l l l l l l l
Dental Materials, 11th Edition
l l l l
MULTIPLE CHOICE l
1. What causes caries?
l l
a. Food debris l
b. Materia alba l
c. Acidic foodstuff l
d. Bacterial plaque l
e. Salivary glycoproteins l
ANS: D l
Feedback
A Food debris does not have the structural organization of bacterial plaque biofilm.
l l l l l l l l l l l
B Materia alba does not have the structural organization of bacterial plaque biofilm.
l l l l l l l l l l l
C Acidic foodstuff lowers pH and may demineralize teeth but does not directly
l l l l l l l l l l l
cause decay.
l l
D Caries is caused by biofilm; also known as bacterial plaque.
l l l l l l l l l
E Salivary glycoproteins form the acquired enamel pellicle to which bacteria
l l l l l l l l l
adhere.
l
DIF: Knowledge REF: p. 1 OBJ: 2 l l l l l l
TOP: CDA, GC, V, A,1b. Patient Education and Oral Health Management
l l l l l l l l l l
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.1 Properties and Manipulation of
l l l l l l l l l l l
Materials
l
2. Caries is most likely to occur on which of the following tooth surfaces?
l l l l l l l l l l l l
a. Buccal
b. Lingual
c. Occlusal
d. Interproximal
e. C and D are both correct.
l l l l l
ANS: E l
Feedback
A Buccal surfaces are also susceptible to caries; however, there is less surface area left
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unchecked.
l
B Lingual surfaces are also susceptible to caries; however, there is less surface area
l l l l l l l l l l l l
left unchecked.
l l
C Caries is most likely to occur in pits and fissures on the occlusal surface and on
l l l l l l l l l l l l l l l
interproximal tooth surfaces where plaque accumulates unchecked.
l l l l l l l
D Caries is most likely to occur in pits and fissures on the occlusal surface and on
l l l l l l l l l l l l l l l
interproximal tooth surfaces where plaque accumulates unchecked.
l l l l l l l
, E Caries is most likely to occur in pits and fissures on the occlusal surface and on
l l l l l l l l l l l l l l l
interproximal tooth surfaces where plaque accumulates unchecked.
l l l l l l l
DIF: Knowledge REF: p. 1 OBJ: 2 l l l l l l
TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials,
l l l l l l l l l l l l l l l
including but not limited to a. amalgam, c. composites
l l l l l l l l l
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
l l l l l l l l
3. Which of the following is an intracoronal restoration?
l l l l l l l
a. Ceramic–alloy crown on tooth number 21 l l l l l
b. Ceramic veneer on tooth number 8 l l l l l
c. Ceramic onlay on tooth number 30 l l l l l
d. Ceramic inlay on tooth number 14 l l l l l
ANS: D l
Feedback
A The alternate choices are all extracoronal restorations used to repair the external.
l l l l l l l l l l l
B The alternate choices are all extracoronal restorations used to repair the external.
l l l l l l l l l l l
C The alternate choices are all extracoronal restorations used to repair the external.
l l l l l l l l l l l
D A ceramic inlay on tooth number 14 is an example of an intracoronal restoration,
l l l l l l l l l l l l l
meaning that the restoration is being used to repair damage restricted to the
l l l l l l l l l l l l l
internal parts of a tooth. Materials such as amalgam and composite resin are used
l l l l l l l l l l l l l l
in addition to ceramic or cast metal.
l l l l l l l
DIF: Knowledge REF: p. 4 OBJ: 3 l l l l l l
TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials,
l l l l l l l l l l l l l l l
including but not limited to a. amalgam, c. composites
l l l l l l l l l
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
l l l l l l l l
4. What is the process called where decay is removed from the tooth in order for a restoration to be
l l l l l l l l l l l l l l l l l l
placed?
l
a. Cavity preparation l
b. Convenience form l
c. Margination
d. Extension
ANS: A l
Feedback
A The process is referred to as cavity preparation. Cavity preparation is used to
l l l l l l l l l l l l
remove diseased or damaged tissue and provide a space accessible for
l l l l l l l l l l l
restoration and one that can stably retain the restoration.
l l l l l l l l l
B Convenience form is a term describing the nature of the cavity preparation. l l l l l l l l l l l
C Extension is a term describing the nature of the cavity preparation.
l l l l l l l l l l
D Margination is the procedure for finishing the margins of a restoration. l l l l l l l l l l
DIF: Knowledge REF: p. l l l l 4 OBJ: l l 2
, TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials MSC:
l l l l l l l l l l l l l l
NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
l l l l l l l l
5. Which of the following is an example of an intracoronal (direct) restoration?
l l l l l l l l l l l
a. Laboratory-cured composite l
b. Dental amalgam l
c. Ceramic veneer l
d. Cast crown l
ANS: B l
Feedback
A Laboratory-cured composite is a restoration that is constructed away from the l l l l l l l l l l
patient in the dental laboratory.
l l l l l
B Dental amalgam is an example of a direct restoration. All of the other restorations
l l l l l l l l l l l l l
are prepared away from the tooth and then cemented or bonded to the tooth using
l l l l l l l l l l l l l l l
a procedure that is independent of the manufacturer of the restoration.
l l l l l l l l l l l
C Ceramic veneer is a restoration that is constructed away from the patient in the dental
l l l l l l l l l l l l l l
laboratory.
l
D Cast crown is a restoration that is constructed away from the patient in the dental
l l l l l l l l l l l l l l
laboratory.
l
DIF: Knowledge REF: p. 4 OBJ: 3 l l l l l l
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative materials MSC:
l l l l l l l l l l l l l l
NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General
l l l l l l l l
6. Which of the following is an example of an extracoronal restoration? Choose all that apply.
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a. Ceramic inlay l
b. Ceramic–alloy crown l
c. Porcelain jacket crown l l
d. A, B, and C l l l
e. A and C
l l
ANS: D l
Feedback
A All three restorations involve lab procedures and are examples of indirect
l l l l l l l l l l
restorations.
l
B All three restorations involve lab procedures and are examples of indirect
l l l l l l l l l l
restorations.
l
C All three restorations involve lab procedures and are examples of indirect
l l l l l l l l l l
restorations.
l
D All three restorations involve lab procedures and are examples of indirect
l l l l l l l l l l
restorations.
l
E All three restorations involve lab procedures and are examples of indirect
l l l l l l l l l l
restorations.
l
DIF: Knowledge REF: p. l l l l 5 OBJ: l l 3
