I have a question about dental work after radiation. The upper jaw was in the radiation field but the radiation also grazed my tongue, it was so close to the radiation field. I suspect that might be true for the lower jaw, especially back by the molars. Tonight I piece of the molar at the very back came out. I call my regular dentist tomorrow for him to check out. My question if he recommends a crown would anyone recommend HBO treatments or is that only for extractions?