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, Chapter 01: Introduction to Restorative Dental Materials
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MULTIPLE CHOICE ma
1. What causes caries?
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a. Food debris
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b. Materia alba ma
c. Acidic foodstuffma
d. Bacterial plaque ma
e. Salivary glycoproteinsma m
CORRECT ANSWER:
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D
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A. Food debris does not have the structural organization of bacterial plaque biofilm.
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B. Materia alba does not have the structural organization of bacterial plaque biofilm.
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C. Acidic foodstuff lowers pH and may demineralize teeth but does not 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 adhere.
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DIF: Knowledge REF: p. 1 m a m a OBJ: 2 m a
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 Mater
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ials
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
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,e. C and D are both correct.
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, CORRECT ANSWER: E ma ma
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A. Buccal surfaces are also susceptible to caries; however, there is less surface area left unchecked.
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B. Lingual surfaces are also susceptible to caries; however, there is less surface area left unchecked.
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C. Caries is most likely to occur in pits and fissures on the occlusal surface and on interproximal to
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oth 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 on interproximal to
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oth 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 on interproximal to
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oth surfaces where plaque accumulates unchecked.
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DIF: Knowledge REF: p. 1 m a m a OBJ: 2 m a
TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials, includi
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ng 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 ma ma ma ma ma
b. Ceramic veneer on tooth number 8 ma ma ma ma ma
c. Ceramic onlay on tooth number 30 ma ma ma ma ma
d. Ceramic inlay on tooth number 1 ma ma ma ma ma
4 CORRECT ANSWER: D
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A. The alternate choices are all extracoronal restorations used to repair the external.
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B. The alternate choices are all extracoronal restorations used to repair the external.
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C. The alternate choices are all extracoronal restorations used to repair the external.
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D. A ceramic inlay on tooth number 14 is an example of an intracoronal restoration, meaning that t
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he restoration is being used to repair damage restricted to the internal parts of a tooth. Materials s
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uch as amalgam and composite resin are used in addition to ceramic or cast metal.
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