What is the difference between a sonic toothbrush and an ordinary electric toothbrush?
It’s easy to identify a sonic toothbrush by way of the high rate of speed at which its brush head vibrates. The brush head of a sonic toothbrush is capable of creating in excess of 30,000 brush strokes per minute. (The latest models of sonic toothbrushes can create more than 40,000 brush strokes per minute. In comparison conventional electric toothbrushes typically operate at frequencies ranging between 2,500 and 7,500 strokes per minute). It is the vibrational motion of these brushes that sets them apart from all previous generations of electric toothbrush design. The sonic toothbrush technology ac
