Test Bank for Dental Materials: Foundations and Applications 11th Edition by Powers John & Wataha John

Dental materials foundations and
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applications
11th edition by Powers
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Chapter 1 to 15 n n n




TEST BANK n

,TABLE OF CONTENT n n




NEW! The Nature of Dental Materials
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n 1.Introduction to Restorative Dental Materials n n n n




n 2.Properties of Dental Materials n n n




3.Preventive Dental Materials n n




4.Direct Esthetic Restorative Materials
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n 5.Dental Amalgam
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6.Finishing, Polishing, and Cleansing Materials
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n 7.Cements
8.Impression Materials n




n 9.Model and Die Materials
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n 10.Waxes
11.Casting Alloys, Wrought Alloys, and Solders
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n 12.Casting, Soldering, and Welding
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n 13.Polymers in Prosthodontics n n




14. Dental Ceramics n




n 15.Dental Implants n

,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?
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a. Food debris n


b. Materia alba n


c. Acidic foodstuff n


d. Bacterial plaque n


e. Salivary glycoproteins n




ANS: D n




Feedback
A Food debris does not have the structural organization of bacterial
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nplaque biofilm. n

B Materia alba does not have the structural organization of bacterial
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nplaque biofilm. n


C Acidic foodstuff lowers pH and may demineralize teeth but does not
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ndirectly cause decay. n n


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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nbacteria adhere. n




DIF: Knowledge REF: p. 1 OBJ: 2 nn n nn n nn n nn n


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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nManipulation of Materials n n




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 n




Feedback
A Buccal surfaces are also susceptible to caries; however, there is less
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nsurface area left unchecked. n n n

B Lingual surfaces are also susceptible to caries; however, there is less
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nsurface area left unchecked. n n n


C Caries is most likely to occur in pits and fissures on the occlusal surface
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nand 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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nand on interproximal tooth surfaces where plaque accumulates
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nunchecked.
E Caries is most likely to occur in pits and fissures on the occlusal surface
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nand on interproximal tooth surfaces where plaque accumulates
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nunchecked.

DIF: Knowledge REF: p. 1 OBJ: 2 nn n nn n nn n nn n


TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative
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nmaterials, 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 n n n n n


b. Ceramic veneer on tooth number 8 n n n n n


c. Ceramic onlay on tooth number 30 n n n n n


d. Ceramic inlay on tooth number 14 n n n n n




ANS: D
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Feedback
A The alternate choices are all extracoronal restorations used to repair
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nthe external. n

B The alternate choices are all extracoronal restorations used to repair
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nthe external. n

C The alternate choices are all extracoronal restorations used to repair
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nthe external. n


D A ceramic inlay on tooth number 14 is an example of an intracoronal
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nrestoration, meaning that the restoration is being used to repair n n n n n n n n n


ndamage restricted to the internal parts of a tooth. Materials such as
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namalgam and composite resin are used in addition to ceramic or
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cast metal.
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DIF: Knowledge REF: p. 4 OBJ: 3 nn n nn n nn n nn n


TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative
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nmaterials, 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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nrestoration to be placed? n n n


a. Cavity preparation n


b. Convenience form n


c. Margination
d. Extension


ANS: A
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