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