Final Exam Flashcards
1
Q
- When should you restore a carious class V lesion?
a. When the tooth is sensitive
b. When the lesion is in the esthetic zone
c. When it is an abfractive lesion
d. Always, if it is restorable
A
D
2
Q
- What determines the type of preparation used for a class V lesion? (slide 13/50 ) class V
a. Whether or not a rubber dam is used
b. The location of the lesion
c. The type of lesion
d. The type of restorative material to be used
A
D
3
Q
- Studies show that occlusive forces alone will cause abfractive lesions. (Slide 15 and 21/50) class V
a. True
b. False
A
False
4
Q
- Demineralized tooth structure cannot remineralize. (Slide 20/50 Class V)
a. True
b. False
A
False
5
Q
- Which is not a reason to restore a NCCL? (Slide 25/50 class v)
a. When the tooth is significantly sensitive
b. When the etiologic factors are uncontrolled
c. When there is a threat to the strength of the tooth
d. when the lesion is esthetically acceptable
A
D
6
Q
- A good preventive and treatment strategy for dental caries includes _______.
a. Limiting cariogenic substrate
b. Controlling cariogenic flora
c. Elevating host resistance
d. All of the above
A
D
7
Q
- Which of the following statements regarding caries risk assessment is correct?
a. The presence of restorations is a good indicator of current caries activity.
b. The presence of restorations is a good indicator of past caries activity.
c. The presence of dental plaque is a good indicator of current caries activity.
d. The presence of pit-and-fissure sealants is a good indicator of current caries activity.
A
B
8
Q
- Which of the following is considered a reversible carious lesion?
a. The lesion surface is cavitated.
b. The lesion has advanced to the dentin radiographically.
c. A white spot is detected on drying.
d. The lesion surface is rough or chalky.
A
C
9
Q
- Smooth surface caries refers to _______. (Slide 6/50 Class V)
a. Facial and lingual surfaces
b. Occlusal pits and grooves
c. Mesial and distal surfaces
d. Both A and C
A
D
10
Q
- When placement of proximal retention locks in class II amalgam preparations is necessary, which of the following is not correct? (Slide 26/51 of class2 cavity prep ppt.) *I think its suppose to be .5mm into DEJ
a. One should not undermine the proximal enamel.
b. One should not prepare locks entirely in the axial wall.
c. Even if deeper than ideal, one should use the axial wall as a guide for proximal lock placement.
d. One should place locks 0.2 mm inside the dentinoenamel junction (DEJ) to ensure that the proximal enamel is not undermined.
A
C
11
Q
- In the conventional Class I composite preparation, retention is achieved by which of the following features?
a. Occlusal convergence
b. Occlusal bevel
c. Bonding
d. Retention grooves
e. 2 and 4
f. 1 and 3
g. 1 and 4
h. 2 and 3
A
F
12
Q
- Many factors affect tooth/cavity preparation. Which of the following would be the least important factor?
a. Extent of the defect
b. Size of the tooth
c. Fracture lines
d. Extent of the old material
A
B??
13
Q
- Restoration of an appropriate proximal contact results in all of the follwing except one. Which one is the exception?
a. Reduces or eliminates food impaction at the inter-dental papilla
b. Provides appropriate space for the interdental papilla
c. Provides increased retention form for the restoration
d. Maintains the proper occlusal relationship
A
C
14
Q
- All of the following are likely to indicate the need for restoration of a cervical notch except one. Which one is the exception?
a. Patient age
b. Esthetic concern
c. Tooth is symptomatic
d. Tooth is deeply notched axially
A
A
15
Q
- Bonding of resins to dentin is best described as involving _______.
a. Mechanical interlocking
b. Ionic bonding
c. Covalent bonding
d. Van der Waals forces
A
A