After years of TMJ and my teeth and jaw just basically being misaligned, so my top and bottom teeth meet in abnormal places causing excessive wear to the enamel,I have continued to have tooth enamel loss on my bottom molars. I get deep pits that just get worse and the sealants they put on at the dentist usually chip off within 6-12 months and cost about $200 per tooth. Does anyone have any tips for to strenghten tooth enamel? Any effective products out there? I wear nightguard at night just in case I grind, which I dont think I do as there are no marks on the mouthguard.