Multiple choice

The major cause of failure in replantation of avulsed teeth appears to be

  1. resorption of the root

  2. ankylosis

  3. caries

  4. periapical abcess
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A Correct answer
Explanation

The root resorption causes maximum failures in replantation of avulsed teeth frequently followed by ankylosis. The two factors, which reduce the chances of failure by resorption are the reduction of extraoral time of the tooth to be less than 30 mts and the initiation of endodontic treatment a week after replantation. Endodontic treatment can be completed within six months of replantation.

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