The best place to get a referral to a dentist who deals with rad patients is from the rad department. That is what I did, and I could not be happier. Also check with your local dental school for a referral. I say this because my dentist is also a prof there.

That said, any competent oral surgeon can pull your wisdom teeth. The type of dentist mentioned above is for after rad and for the rest of your long and happy life.