I weent into radiation two weeks after dental surgery (16 rear teeth removed) and had no prlbems from the dental surgery. I however, still had exposed jawbone in two places on the inside of my mouth where my surgeon had done biopsies 8 weeks earlier. Needles to say, these did notheal during radiation or for many months afterward. Although they were not painful, they kept growing little bone spurs which my surgeon would scrape off every two weeks or so. I had no HBO treatments, but is wasn't until they were finally able to clear up my rampant case of thrush, that the tissue on the jawbone finally grew back, about 6 months later. They also put me in Zinc, Vit C, a multivitamin and diet high in Protein.

Don't know if any of that helps, but if bone spurs are a problem, you need to have them removed, else as fast as it heals, it opens up again. I'd also check for thrush.

Tahe care,
Eileen