Subject: Module 08: Instrument Design and Classification
1. For the instrument illustrated below, working-end A is identified as _____.
A. G
B. G 1
C. G 2
D. G 1/2
Answer: B
Subject: Module 08: Instrument Design and Classification
2. Paired working-ends are working-ends that are exact mirror images of each other. Some
double-ended instruments have unpaired, dissimilar working-ends.
A. Both statements are true.
B. Both statements are false.
C. The first statement is true; the second statement is false.
D. The first statement is false; the second statement is true.
Answer: A
Subject: Module 08: Instrument Design and Classification
3. Tactile sensitivity is _____.
Copyright © 2016 by Jones & Bartlett Learning, LLC, an Ascend Learning Company 8-1
, A. the way that the clinician's fingers are placed on the instrument handle
B. the clinician's ability to feel things through the instrument shank and handle
C. the surface irregularities found subgingivally on the teeth
D. the correct relationship between the working-end and the tooth surface
Answer: B
Subject: Module 08: Instrument Design and Classification
4. A clinician is experiencing muscle strain in his fingers and wrist. Which of the following
would be most likely to reduce strain to the clinician's fingers and wrist?
A. Small-diameter handle with no texturing
B. Large-diameter handle with no texturing
C. Small-diameter handle with raised texturing
D. Large-diameter handle with raised texturing
Answer: D
Subject: Module 08: Instrument Design and Classification
5. A periodontal instrument is balanced if the _____.
A. instrument is double ended
B. instrument has a small-diameter handle with texturing
C. working-ends are aligned with the long axis of the handle
D. working-ends are mirror images of each other
Answer: C
Copyright © 2016 by Jones & Bartlett Learning, LLC, an Ascend Learning Company 8-2
1. For the instrument illustrated below, working-end A is identified as _____.
A. G
B. G 1
C. G 2
D. G 1/2
Answer: B
Subject: Module 08: Instrument Design and Classification
2. Paired working-ends are working-ends that are exact mirror images of each other. Some
double-ended instruments have unpaired, dissimilar working-ends.
A. Both statements are true.
B. Both statements are false.
C. The first statement is true; the second statement is false.
D. The first statement is false; the second statement is true.
Answer: A
Subject: Module 08: Instrument Design and Classification
3. Tactile sensitivity is _____.
Copyright © 2016 by Jones & Bartlett Learning, LLC, an Ascend Learning Company 8-1
, A. the way that the clinician's fingers are placed on the instrument handle
B. the clinician's ability to feel things through the instrument shank and handle
C. the surface irregularities found subgingivally on the teeth
D. the correct relationship between the working-end and the tooth surface
Answer: B
Subject: Module 08: Instrument Design and Classification
4. A clinician is experiencing muscle strain in his fingers and wrist. Which of the following
would be most likely to reduce strain to the clinician's fingers and wrist?
A. Small-diameter handle with no texturing
B. Large-diameter handle with no texturing
C. Small-diameter handle with raised texturing
D. Large-diameter handle with raised texturing
Answer: D
Subject: Module 08: Instrument Design and Classification
5. A periodontal instrument is balanced if the _____.
A. instrument is double ended
B. instrument has a small-diameter handle with texturing
C. working-ends are aligned with the long axis of the handle
D. working-ends are mirror images of each other
Answer: C
Copyright © 2016 by Jones & Bartlett Learning, LLC, an Ascend Learning Company 8-2
