Initially I was happy to get a good deal: the brushes are identical to the original, somewhat smaller diameter of the hairs allows even more precise, it connects to the end without problems, it rotates at the same speed and all half price. Yes ... the first two weeks and then given to the shell inside was dislocated while I was setting up my brush on the handle. Unusable. I take a second, which held 3 days: broken spring training. I put a third: the same spring loose immediately. The 4th held 7 days, the 5th 3 times. And so, after a month I finished two packages. Always that damn little loose spring in full brushing. Result brush to stop rotating. I can not tell you if hair fall faster: it did not have time to happen! Result: I still have a pack of 5 brushes, I recommend quickly brushes before breaking down. But this time I'll take the Oral B. They cost a twice more expensive but lasts 5 times longer. (FYI I did not share with Oral B). Note: my wife and my daughter does not have the same problem as me. They must rely on their baby teeth weaker.
