Can over the counter mouth guards be used to reduce back scatter from dental fillings during head and neck radiation?

I have been using them for years for my H&N patients with success, in any patient with a metal capped tooth. I have never had a tongue or buccal mucosa ulcer when using them, except in a couple of cases where the fit was poor and I did not recognize this. Custom ones are expensive and are often not ...

We have been using a wax bolus for 28 years that we custom fit over any teeth with metallic fillings when these teeth will be encompassed within the radiation field.

The bolus absorbs the secondary scatter off the metal and has significantly reduced the incidence of tongue and buccal mucosal ulce...