this review title is: uncomfortable because it barely fits in mouth and the content is: just way too big brush head for it to be comfortable it is twice as long as my regular toothbrush unfortunately these will end up in trash defeating the purpose of them hope manufacturer revises size i have a normal size mouth nothing out of the ordinary and my husband found it to be large and uncomfortable as well.there are other information for this review, one is this reviewer did not purchase it and the other is 0 people think this review is helpful.