Cath, I was just reading about a similar situation. First, was the radiation to that part of your mouth? If so, all is not lost. Patients needing invasive dental work can be treated with hyperbaric oxygen prior to and following the procedure. This guards against the dreaded osteoradionecrosis quite well. I do not have it immediately at hand, but I recently read a long article about this and will email it to you when I find it agin. Hang in there!
Joanna