Dental and Oral Tissue Trauma · CDA

In trauma involving knocked-out permanent teeth that are to be replanted, what is the recommended procedure for the root surface before reimplantation if contamination has occurred?

  1. Scrub it vigorously with a brush and some soap
  2. Rinse gently in saline or milk without touching the root
  3. Use alcohol to fully sterilize the exposed root surface first
  4. Soak it in ordinary tap water for about ten minutes
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Correct answer: Rinse gently in saline or milk without touching the root

Guidelines recommend gentle rinsing in saline or milk and avoiding scrubbing or drying the root to preserve viable periodontal ligament cells necessary for reattachment.

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