Osteoradionecrosis is death of the bone where a patient has had radiation. It can be very painful. I am not sure about by applying pressure it will relieve the pain. It could be several things including TMJ or even just plain old scar tissue.

I have done 125 HBO 'dives'. Its not a difficult thing to do at all. I do not know why it is not standard protocol. Maybe you answered that yourself by saying not that many patients end up with osteoradionecrosis. Im not sure. I can tell you all about HBO. It may require tube to be placed in the ears prior to beginning any treatment. Thats not a big deal either, outpatient surgery and being sore for about a day afterwards. By doing the tubes the patient avoids having any hearing issues relating from the pressurized tank. My HBO was a 2 hour deal, takes about 5 minutes to go 'down' and 5 minutes to come back 'up' with about 1 3/4 hour in the tank. The doc will check blood pressure and heart rate before and after. Some facilities have large group HBO tanks where I was treated it was individual glass cylinders. No makeup, metal, books, newspapers, cologne, dentures, even no deodorant is allowed in the tanks. My nurse would tell me if you werent born with it, it doesnt go it with you. The exception is a clear water bottle with the label removed is allowed in. HBO can cause temporary vision changes. If that happens he will begin to notice it around the first 2 to 3 weeks. It takes about the same amount of time to change back after HBO has finished.

Any other questions you may have, please ask and I will try to answer them.