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