I was recommended to use a rechargeable toothbrush by my Hygienist in order to clean my teeth more effectively but I worried that a powered toothbrush would be too abrasive on my already sensitive teeth, due to over brushing with a manual toothbrush in the past. However the Braun range of toothbrushes provides these Extrasoft Toothbrush Refills which fit any Braun model (as do all its refills). These Extrasoft refills are soft to the touch and do not cause me any sensitivity. I have the added knowledge, due to a subsequent visit to my Hygienist, that I am also now effectively cleaning my teeth without causing further damage or sensitivity to my teeth, which has put my mind at ease. The perfect option for sensitive teeth.