I'm willing to bet that no insurance will cover the hyperbaric chambers. Because of the cost. My teeth were in good condition when I got sick. oct of 2014. I was put on the fluoride treatments. I use prescription fluoride and the tray that they made for me. I asked to have my teeth removed then and dentures. They refused. After all of these years I'm finding that I'm having small problems. Small cavities . Also had three root canals at a mere $1200.00 each. CASH. I have paid cash for all of my dental. Neither the dentist or the specialist accepts any insurance I've had. YAY. My radiation doctor says absolutely no removal of my teeth. Radiation softens the bones. Also if you find that your mouth is dry I recommend using Biotene dry mouth gel. If you have the tray from your dentist that you use for the fluoride then you can use this at night too. I put some of the biotene in the trays "smear it in" and I sleep with the trays in. The dryness overnight can also help cause tooth decay. I've been doing this for years and I really believe that this has helped me. Biotene doesn't contain any sugar and is flavor free. I've tried using it without the trays and it just disappears in no time. I use fluoride before bed and do this after the treatments. I've been doing this since Jan of 2015. Not sure if this will help anyone but it sure can't hurt. good luck with those teeth.