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