I have just bought more toothbrush heads for my wonderful oral care toothbrush . The toothbrush is fabulous unfortunately I find the heads less so. The bristles , in my opinion are too soft and splay very easily plus they are very slippy and often slip off the teeth hitting other teeth. I don't know If anyone else has this experience but I go through toothbrush heads incredibly quickly consequently, and they are not particularly cheap if you go through them as often as I do. I know I don't brush my teeth too hard because I also use another toothbrush from time to time which lights up if you brush too hard and it never lights up.