I just started my rad Txs yesterday and I had a lot of dental questions...I always do. My teeth were checked by my Dentist and he said all was good. I also had a second opinion by a Periodontist that is familiar with rad Txs double-check...all was good. My main concern is what would happen if I need dental work down the road. My Radiologist told me if that happens make sure you see someone who knows about radiation and OC. And to have that Doctor call him and they would discuss the procedures to take. My Radiologist said most likely HBO txs before and after dental work. He also told me I will have to maintain excellent oral hygiene for the rest of my life. I was also told if I ever have a filling or any other kind of dental work that I should get new fluoride trays made in order to fit properly. I also asked what would happen if I start loosing my teeth 30 yrs down the road...he said I can't answer that because by that time medicine will be different. Good luck...we all need it.