Hi, have been a RSD patient since 1988, actually before they really knew anything about it. Was caused immediately during a myleogram, with a misplaced needle, sending into shock & have had an intense, burning pain from the waist down on the left side. It took about 10 years before I began having dental problems, since it's seemed to be a constant problem. Each & every tooth that's been worked on, there's been lasting pain, other troubles, it seems to be never ending. Where I've had anesthetic injections, the pain radiates from the ear down the chin, making it difficult to shave, eat, talk, etc. I don't have the answers, normally knowing about the disorder than most doctors, although I was lucky enough to find a Pain Clinic 10 years ago, after constant fighting with different doctors, who would always say, "the pain should be gone by now" or the "nerve should've regenerated," always willing to hospitalize me for pain control, yet never willing to prescribe pain meds. With a stroke of luck, my case was turned over to my PCP, a young doctor who did his internship under the head of the Pain Clinic where I finally received help. I guess my only advice would be to make sure that your dentist knows about RSD, even bring him info of the disorder, knowing that any "dealings" with nerves can have long lasting consequences. Good luck to you all, hoping you receive some understanding.