"Avulsion refers to a tooth that is completely disarticulated from its socket and is found outside the mouth...Ideally, the tooth should be replanted within 15 to 20 minutes of the avulsion.

If extraoral dry time was 20 to 60 minutes, some periodontal ligament cells may be vital. If extraoral dry time was greater than 60 minutes, all periodontal ligament cells have likely died and re-plantation has a poor prognosis due to root resorption over time."

Dr. Hehn's Take

I still find it fascinating that a canine that is completely avulsed or knocked out can be saved! The article suggests that the ideal time for replacement is within 15-20 minutes. Rarely can this be accomplished by the time the owner gets their pet to the vet. Dr. Lewis recommends to immerse the tooth in milk, or tell the owner to do this if they have the tooth before they come in. The milk is thought to help preserve the periodontal ligament cells on the tooth for up to 6 hours so that it can be anchored back into the socket successfully. Check out this article for photos on how the tooth is replaced and secured. Very informative!

Read the full Article from chicagotribune.com

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