Linda,

If he's being treated at a major cancer center, his medical team there should be able to provide some referrals to dentists who have experience with radiation-treated patients. Having that type of dentist is essential, not only during the treatment itself, but for the rest of his life (I'm almost 18 years post-treatment and still have frequent dental and periodontal checkups to look for any long-term after effects).

Also, very careful dental hygiene is critical going forward. This typically includes regular fluoride applications, teeth cleanings 4 to 6 times per year, and keeping the mouth as moist as possible to prevent deterioration of the teeth and gums.

Cathy