Top 6 Ways To Buy A Used Toothbrush

By admin / August 16, 2014

Usually the sonic toothbrushes are capable of producing more than 31000 head strokes per minute even some of the models of the sonic toothbrushes are capable of producing more than 40000 head strokes per minute while the normal electric toothbrushes are able to produce only 3000 to 8000 head strokes per minute. The high speed of the head is achieved in the sonic toothbrush due to the vibratory motion of the head.