Test bank For Dental Materials , foundations and applications 11th edition Powers Author; John and Wataha John ALL CHAPTERS INCLUDED With Correct Qs& As

Test bank For Dental Materials , foundations and
applications 11th edition Powers Author; John and
Wataha John ALL CHAPTERS INCLUDED With Correct
Qs& As




1|Page

,Chapter 01: Introduction to Restorative Dental Materials

Powers: Dental Materials, 11th Edition


MULTIPLE CHOICE

1. What causes caries?
a. Food debris
b. Materia alba
c. Acidic foodstuff
d. Bacterial plaque
e. Salivary glycoproteins

ANS: D

Feedback
A Food debris does not have the structural organization of bacterial plaque
biofilm.
B
Materia alba does not have the structural organization of bacterial plaque
biofilm.
C
Acidic foodstuff lowers pH and may demineralize teeth but does not directly
cause decay.
D Caries is caused by biofilm; also known as bacterial plaque.
E
Salivary glycoproteins form the acquired enamel pellicle to which bacteria
adhere.

DIF: Knowledge REF: p. 1 OBJ: 2
TOP: CDA, GC, V, A,1b. Patient Education and Oral Health Management
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.1 Properties and Manipulation of
Materials

2. Caries is most likely to occur on which of the following tooth surfaces?
a. Buccal
b. Lingual
c. Occlusal
d. Interproximal
e. C and D are both correct.


2|Page

, ANS: E

Feedback
A
Buccal surfaces are also susceptible to caries; however, there is less surface
area left unchecked.
B
Lingual surfaces are also susceptible to caries; however, there is less
surface area left unchecked.
C
Caries is most likely to occur in pits and fissures on the occlusal surface and on
interproximal tooth surfaces where plaque accumulates unchecked.
D
Caries is most likely to occur in pits and fissures on the occlusal surface and on
interproximal tooth surfaces where plaque accumulates unchecked.
E
Caries is most likely to occur in pits and fissures on the occlusal surface and on
interproximal tooth surfaces where plaque accumulates unchecked.

DIF: Knowledge REF: p. 1 OBJ: 2
TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials,
including but not limited to a. amalgam, c. composites
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General

3. Which of the following is an intracoronal restoration?
a. Ceramic–alloy crown on tooth number 21
b. Ceramic veneer on tooth number 8
c. Ceramic on lay on tooth number 30
d. Ceramic inlay on tooth number 14

ANS: D

Feedback
A The alternate choices are all extracoronal restorations used to repair the
external.
B The alternate choices are all extracoronal restorations used to repair the
external.
C The alternate choices are all extracoronal restorations used to repair the
external.
A ceramic inlay on tooth number 14 is an example of an intracoronal
D


restoration, meaning that the restoration is being used to repair damage
restricted to the internal parts of a tooth. Materials such as amalgam and
composite resin are used in addition to ceramic or cast metal.

DIF: Knowledge REF: p. 4 OBJ: 3
3|Page

, TOP: CDA, GC, III, B, 1, Describe how to prepare, mix, deliver, and store restorative materials,
including but not limited to a. amalgam, c. composites
MSC: NBDHE, 6.0 Providing Supportive Treatment Services, 6.5 General


4. What is the process called where decay is removed from the tooth in order for a
restoration to be placed?
a. Cavity preparation
b. Convenience form
c. Margination
d. Extension

ANS: A

Feedback
A
The process is referred to as cavity preparation. Cavity preparation is used
to remove diseased or damaged tissue and provide a space accessible for
restoration and one that can stably retain the restoration.
B Convenience form is a term describing the nature of the cavity preparation.
C Extension is a term describing the nature of the cavity preparation.
D Margination is the procedure for finishing the margins of a restoration.

DIF: Knowledge REF: p. 4 OBJ: 2




4|Page