Take a vibrator and use a couple cable ties to attach a toothbrush. Turn the vibrator on its highest setting, and then brush your teeth. That's kinda what it feels like.
The toothbrush features "MicroPulse bristles that independently pivot back and forth to penetrate deep" and "a pressure-sensitive head that adjusts to the contours of your teeth". Ummm... Yeah.
Buzz-wise, I think it would make a better sex toy than the Gillette Fusion Power razor.