I'm sorry to hear of the troubles, and have somewhat similar concern. I need all my teeth extracted due to radiation damage, actually chemo can damage teeth as well, and other medications, some which cause dry mouth.

Anyway, been dealing with this almost two years, which couldn't be addressed due to cancer recurrences, so was waiting for a clear PET scan to do HBOT, 20 before, 10 after extractions. Currently dealing with gum/tooth infection, abscesses. Now my oral surgeon is not sure what he is going to do with all my radiation, afraid to do HBOT, and needs to consult with my RO, Btw, both are at Beth Israel with Dr. Mark Urken, ENT. Beth Israel hospital system was recently joined with Mt. Sinai, but both are separate hospitals. To confuse matters, Dr. Mark Urken was the Otoloryncology Chairman at Mt. Sinai for over a decade. Dr. Eric Gendon, who worked under him before his departure, is now Chairman there, and has just as good a reputation, and did the first human jaw transplant.

As far as extractions, I understand root canal is an alternative as not to cause ORN. I don't know if I can do that, but will ask, but in reality my teeth have to go, what's left of them.

Good luck, and hope this helps.