very disappointing [SEP] purchased the oral b professional care after reading reviews and their advertising that dentists recommend it i had been using a sonicaire elite for over years with great results but that unit died and it was time for something new short story is i have returned the oral b to the manufacturer under their great day challenge policy in my experience the sonicaire is a much more effective product for the money just received my new one from amazon yesterdaypros my wife and were both unpleasantly surprised at how much the units vibrated our heads while brushing certainly not inspiring us to brush more longer used the unit for about a month and had a dental cleaning hygienist said i had more stain on my teeth and gums were more raw than my previous checkup just months before only change in habit was the oral b toothbrush