Tony,

I developed the exact same tongue thing on the right side. It was exactly as you stated: radiation bouncing off my metal filing. I found some relief from putting that side of the tongue below below the tooth line and bottom of the mouth during treatment. Ask the techs if there is any sort of cover you can put over the filling or something as this type of burn takes a long time to heal. For example I am almost 2 weeks post treatment and it doesn't feel any better.

Regards,

-Rich

47, Non-smoker, moderate drinker
7/13 Found a lump on my neck
8/08/13 Dx HPV 16+ SCC right tonsil
8/19/13 Biopsy and neck dissection, 38 lymph nodes removed 2+ for cancer
9/23/13 Start 33 radiation treatments & 4 x Carboplatin/Taxol, 3 x Taxol only
11/07/13 Last radiation treatment
01/03/14 Post treatment CT scan looks good