Does anyone have a Emmi-dent 6 toothbrush, I'm thinking of buying one and they aren't cheap, there are several sonic toothbrushes but they all have a mechanical vibration or oscillation at high speed an ultrasound brush does not clean with abrasion they use ultrasound, the Emmi-dent 6 is the only one of this specific type made.
Fox news had an article about them awhile back.