this review title is: they just do not work and the content is: i have used dentrust surround toothbrushes along with collis curve toothbrushes for years and years and my teeth stay squeaky clean in a rush my own fault i bought surround toothbrushes by mistake they just do not work i carefully ordered dentrust brushes again and now feel clean i honestly do not understand all the great reviews for these toothbrushes i gave one of these to my husband and he hated it i gave two more away to my daughter and her husband and they threw them out if you try these and try dentrust you will feel the huge difference.there are other information for this review, one is this reviewer did purchase it and the other is 2 people think this review is helpful.