Question about Oral-B Pulsonic Slim Clean

Probably best to ask an experienced dentist this question, but from what I have read around the subject, rotating heads are more damaging to the surface enamel of our teeth, given that they brush sideways across the teeth as well as the more recommended upwards-and-downwards-only motion, particularly at the point where the teeth and gums meet. Pulsonic brushes vibrate very fast, but not in a circular motion, only up and down (if you hold the brush horizontally) with very little actual movement of the tips of the brush. I hope this helps.