Dental and Oral Tissue Trauma · CDA

Within what time frame should an avulsed permanent tooth ideally be replanted to maximize the chance of long-term survival?

  1. Within 5–10 minutes
  2. Within 30 minutes to 1 hour
  3. Within 6 hours
  4. Within 24 hours
Show answer and explanation

Correct answer: Within 30 minutes to 1 hour

Replantation within 30 minutes to one hour offers the best chance for survival because the periodontal ligament cells remain viable; beyond this window, prognosis worsens significantly.

Difficulty: Medium Question 3 of 19

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