I am no dentist, so take my opinion as just that, an opinion. I can't imagine reed vibrations having an effect, as your teeth do not even touch the reed. However, the resonance vibrations of the horn and mouthpiece might be a different matter. However, there are mouthpiece cushions or patches that are available that can be stuck right on top of the mouthpiece where it comes in contact with the teeth. I've heard from others that it helps to reduce vibrations that have caused them pain. I use them to protect the mouthpiece from my teeth, though I know I should not be biting that hard!