I had some bad teeth due to dry mouth from meds.

Two teeth had broken off down to the gum.  A front tooth was "gone" as
defined by my dentist, although it seemed fine to me, and the last
tooth had a very large cavity.

Anyway, I saw an oral surgeon.  I was put to sleep and the teeth
extracted.

Now I can feel what I think is a piece of tooth. The dentist looked,
and pulled at it.  He said......it is a piece of bone or something.
He wants me to come back in a week to give it time to work out.

There was another guy in the waiting room that said he had the same
trouble.  He said the same thing happened to him, but the dentist was
able to pull his out with tweasers.  When I called to make the return
appointment, and told the receptionist about the tooth, she also said
the problem is usually a piece of bone.

How common is it to have to go back?  Should I be required to wait a
week to see if it works loose?  The tooth is uncomfortable enough to
have to use oral jell.

Thanks