Side effects? WHAT side effects? This, David, is exactly what I want to know and I thank you very much for your response. My reading has turned up some interesting things like vision changes and inner ear bleeding. And, remarkably, that spas are offering HBO treatment for "rejuvenation" purposes, totally unrelated to any medical application! Is there a possibility, then, that I will not only save my mandible,but come out looking 20 years younger? (grin).
Joanna