Bryanna, thanks for the quick reply. I posted too quickly yesterday and should have clarified that the same tooth has had 1 root canal, followed by 2 retreatments. So 1 tooth (part of a bridge) is involved. In retreating the tooth, the endo said he was "cleaning the canals" and "getting medication where it needed to go." (I know.... makes you furious...)

We've talked to other dentists and doctors, most of whom said they knew of no one taking a bisphosphonate drug who developed a jawbone infection. But most knew about thigh fractures.

I'll keep looking for an oral surgeon who knows about the effects of bisphosphonates.

Thanks again!

P.S.: Without getting too specific, medical background initially was ignored. My mother filled out forms listing her ONE medication. Dentist saw that medication listed after infection appeared....