Multiple Choice
When scaling around the line angle of a tooth a clinician must do what to avoid lacerating the soft tissue?
A) Keep the shank parallel to the tooth scaling surface.
B) Roll the instrument handle between the middle finger and thumb.
C) Maintain the tip or toe of the instrument against the tooth.
D) Open the angle of the instrument larger than 90 degrees.
Correct Answer:
Verified
Correct Answer:
Verified
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