Question 59 · LDEK · Biomechanics and tissue response to treatment

An extrusive tooth movement results in:

  1. A. parallel tooth displacement.
  2. B. tooth displacement along the long axis of the tooth toward the occlusal plane.
  3. C. tooth displacement along the long axis of the tooth toward the alveolus.
  4. D. tooth rotation around its long axis.
  5. E. root apex displacement in relation to the crown.
Hint

Extrusion and intrusion are both movements along the long axis; decide which direction takes the tooth out of its socket.

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