I don't know man, after I got my oral vibrator I could never go back. I got the oral B something or other three years ago for Christmas and it has honestly turned out to be one of the best presents ever. I highly recommend getting one, but I would do some research cause not all of them are good for your teeth. I remember mine was actually endorsed by dentists, but some other ones were opposed. I'd just go to the product home pages, it will probably say whether or not they're ADA approved. These things rock when you're too tired(or intoxicated) to brush your teeth normally, since they do all the work for you. Plus my teeth never felt this clean when I used a normal toothbrush. There it is, an unbiased opinion. I sound like a freaking commercial but I really did like it that much. People used to make fun of me in the dorms because I would brush my teeth like 5 times a day after I got it.