Practice Quiz

ADA NBDE National Board Dental Part II

Category - NBDE II

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Rotation is the movement of the tooth around the:
  1. Short axis
  2. Long axis
  3. Root
  4. Anterior
Explanation
Answer: B - Rotation is the movement of the tooth around the long axis. The elastic supracrestal gingival fibers will attempt to maintain its prior location, therefore, a retention device is necessary to avoid relapse.
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