not for people with over bite [SEP] i like the idea of this product and i know this can work for some peoplebut it is not for everyonei have a bit of an overbite and this is made for someone who dose not have a overbite if the bites pressure is not squarely one on top of the other then the teeth push out forward a little with unequal force so this can make your overbite worse my top teeth got more sore than my jaw after a few days which means it is begining to move my teeth out forward more so i gave this to my friend who has perfect teeth and she has no problems