Hi Deb: I am just beginning hyperbaric oxygen, and hope to have dental implants soon. Insurance still hasn't agreed to pick up the tab, but the Hyperbaric center is sure that they will, and are treating me. I see that you are in California. If you are in Los Angeles, Glendale Adventist Hospital has an amazing hyperbaric center and a wonderful staff. 818 409-8000 - ask for hyperbaric.
Before I got in at Glendale, I made a lot of inquiries - there a quite a few commercial hyperbaric places in Southern Cal, and most of them will give you a price around $150.00 per visit, if you negotiate, and if you guarantee to take at least ten treatments.
Good luck - I know that my facial swelling is finally starting to go down, since I started hyperbaric, and I feel a lot better. Also, according to my hyperbaric doctor, cancer cells have difficulty in surviving in an HBO environment.
I had Stage IV tongue cancer, finished radiation and chemo 7 months ago. My recent PET scan showed no evidence of cancer.