You will be much better off paying for having teeth pulled now than having to pay for the expense of Hyperbaric Oxygen treatment (tens of thousands of dollars) after radiation because your bad teeth have given you osteoradionecrosis. If you have a good RO, they won't let you go through radiation unless you get those teeth pulled. There are dentists that take emergency charity cases if you really can't afford it and if this isn't an emergency oin terms of getting those teeth pulled, I don't know what is!