What is hard white sharp substance in socket of tooth extraction?

Bone Answer: Following an extraction, it is common to experience something called a 'sequestrum,' which is a small sliver of bone that has split off from the wall of the tooth socket. It can be quite painful as it works its way out of the tissue, much like a splinter might. This is a common complication, and your dentist can treat it immediately if you let him/her know about it.

There should be no additional fee involved, as this is routine follow-up care.

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