applications
11th edition by Powers
TEST BANK q
,TABLE OF CONTENT q q
NEW! The Nature of Dental Materials
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1.Introduction to Restorative Dental Materials
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2.Properties of Dental Materials
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3. Preventive Dental Materials q q
4. Direct Esthetic Restorative Materials
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5. Dental Amalgam
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6. Finishing, Polishing, and Cleansing Materials
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7.Cements
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8.Impression Materials q
9.Model and Die Materials
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10.Waxes
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11.Casting Alloys, Wrought Alloys, and Solders
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12.Casting, Soldering, and Welding
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q 13.Polymers in Prosthodontics q q
14. Dental Ceramics q
15. Dental Implants q
,Chapter 01: Introduction to Restorative Dental
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Materials Powers: Dental Materials, 11th Edition
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MULTIPLE
CHOICE
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1. What causes caries? q q
a. Food debris q
b. Materia alba q
c. Acidic foodstuff q
d. Bacterial plaque q
e. Salivary glycoproteins q
ANS: D q
Feedback
A Food debris does not have the structural organization of bacterial
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plaque biofilm.
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B Materia alba does not have the structural organization of bacterial
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plaque 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
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bacteria adhere.
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DIF: Knowledge REF: p. 1 OBJ: 2 q q q q q q q
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
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Manipulation of 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 q
Feedback
A Buccal surfaces are also susceptible to caries; however, there is less
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surface 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
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and on interproximal tooth surfaces where plaque accumulates
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, unchecked.
D Caries is most likely to occur in pits and fissures on the occlusal surface
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and on interproximal tooth surfaces where plaque accumulates
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unchecked.
E Caries is most likely to occur in pits and fissures on the occlusal surface
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and on interproximal tooth surfaces where plaque accumulates
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unchecked.
DIF: Knowledge REF: p. 1 OBJ: 2 q q q q q q q
TOP: CDA, 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 q q q q q
b. Ceramic veneer on tooth number 8 q q q q q
c. Ceramic onlay on tooth number 30 q q q q q
d. Ceramic inlay on tooth number 14 q q q q q
ANS: D
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Feedback
A The alternate choices are all extracoronal restorations used to repair
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the external. q
B The alternate choices are all extracoronal restorations used to repair
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the external.
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C The alternate choices are all extracoronal restorations used to repair
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the 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
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damage restricted to the internal parts of a tooth. Materials such as
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amalgam and composite resin are used in addition to ceramic or cast
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metal.
DIF: Knowledge REF: p. 4 OBJ: 3 q q q q q q q
TOP: CDA, 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 q
b. Convenience form q
c. Margination
d. Extension
ANS: A
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Feedback