A dry socket is essentially the hole left behind by the extracted tooth. Read more at http://askthedentist.com/how-to-heal-a-dry-socket/ Dr. Burhenne explains the steps to take if you have one following a wisdom teeth or other tooth extraction.
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More information on dry sockets and how to prevent them:
Dry Socket: What It Is and How to Heal: http://askthedentist.com/how-to-heal-a-dry-socket/
How to Prevent a Dry Socket: http://youtu.be/DP6kHp4kMLo
How to Speed Up Wisdom Teeth Recovery: http://askthedentist.com/how-to-recover-from-wisdom-teeth-surgery-faster/
