applications
11th edition by Powers
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,TABLE OF CONTENT WQ WQ
NEW! The Nature of Dental Materials 1.Introdu
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ction to Restorative Dental Materials 2.Properti
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es of Dental Materials
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3. Preventive Dental Materials WQ WQ
4. Direct Esthetic Restorative Materials
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5. Dental Amalgam WQ
6. Finishing, Polishing, and Cleansing Materials WQ WQ WQ WQ WQ
7.Cements
8.Impression Materials WQ
9.Model and Die Materials 10.W
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axes
11.Casting Alloys, Wrought Alloys, and Solders
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12.Casting, Soldering, and Welding 13.Polym WQ WQ WQ W Q
ers in Prosthodontics
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14. Dental Ceramics W Q
15. Dental Implants WQ
Chapter 01: Introduction to Restorative Dental Materia
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ls Powers: Dental Materials, 11th Edition
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MULTIPLE CHOIC WQ
E
1. What causes caries? W Q W Q
a. Food debris WQ
b. Materia alba WQ
c. Acidic foodstuff W Q
d. Bacterial plaque WQ
e. Salivary glycoproteins WQ
ANS: D WQ
Feedback
A Food debris does not have the structural organization of bacterial pl
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aque biofilm. WQ
B Materia alba does not have the structural organization of bacterial pl
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aque biofilm. WQ
, C Acidic foodstuff lowers pH and may demineralize teeth but does not
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directly cause decay. WQ WQ
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 ba
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cteria adhere. WQ
DIF: Knowledge REF: p. 1 OBJ: 2 W Q W Q W Q W Q W Q W Q W Q
TOP: W QCDA, GC, V, A,1b. Patient Education and Oral Health Management
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MSC: W Q NBDHE, 6.0 Providing Supportive Treatment Services, 6.1 Properties and Manipu
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lation WQ 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 WQ
Feedback
A Buccal surfaces are also susceptible to caries; however, there is less surf
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ace area left unchecked.
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B Lingual surfaces are also susceptible to caries; however, there is les
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s 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 W Q W Q W Q W Q W Q W Q W 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 WQ WQ WQ WQ WQ
b. Ceramic veneer on tooth number 8 WQ WQ WQ WQ WQ
c. Ceramic onlay on tooth number 30 WQ WQ WQ WQ WQ
d. Ceramic inlay on tooth number 14 WQ WQ WQ WQ WQ
ANS: D
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Feedback
, A The alternate choices are all extracoronal restorations used to repair
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the external. WQ
B The alternate choices are all extracoronal restorations used to repai
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r the external.
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C The alternate choices are all extracoronal restorations used to repai
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r the external.
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D A ceramic inlay on tooth number 14 is an example of an intracorona
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l restoration, meaning that the restoration is being used to repair da
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mage restricted to the internal parts of a tooth. Materials such as am
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algam and composite resin are used in addition to ceramic or cast
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metal.
DIF: Knowledge REF: p. 4 OBJ: 3 W Q W Q W Q W Q W Q W Q W 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
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a restoration to be placed?
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a. Cavity preparation W Q
b. Convenience form WQ
c. Margination
d. Extension
ANS: AWQ
Feedback
A The process is referred to as cavity preparation. Cavity preparation i
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s used to remove diseased or damaged tissue and provide a space a
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ccessible for restoration and one that can stably retain the restoratio
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n.
B Convenience form is a term describing the nature of the cavity W Q W Q W Q W Q W Q W Q W Q W Q W Q W Q
preparation.
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. WQ WQ WQ WQ WQ WQ WQ WQ WQ WQ
DIF: Knowledge REF: p. 4 OBJ: 2 W Q W Q W Q W Q W Q W Q W Q
TOP: CDA, GC, III.B.1. Describe how to prepare, mix, deliver, and store restorative m
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aterials 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 WQ
b. Dental amalgam WQ
c. Ceramic veneer WQ
d. Cast crown WQ
ANS: BWQ
Feedback
A Laboratory-
cured composite is a restoration that is constructed away from the patie
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nt in the dental laboratory.
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