Ouch Don- I am so sorry! Sounds very painful and confusing too...I too find it completely confusing on what to do regarding my dental health. I wish there were dentists out there who specialized in taking care of patients who have had cancer and radiation because there are so many issues related to it. Can you see if the CCC has some reccomendations for dentists who have familiarity with cancer patients?Maybe just calling around to the best dentists out there- Even if they haven't dealt with a cancer patient they would at least be very knowledable about what to do.