i too have that problem ,but i am having problems with my lower teeth,and cannot wear my mouthguard that was made for me ,as when i take it off feels like my teeth are coming with it
but mouthguards are not that expensive mine cost me £45 and that was made by a top dentist in wimpole street, mind you cost me £100 to see me and he didnt do nothing else
but ,a night guard should help ,wished i could wear one ,well will do once hopefully i get the bottom teeth sorted out