Was scrolling through the comments to see if anyone mentioned this. I started taking magnesium supplements a couple of years ago after hearing somewhere (forget where at this point) that it helped with teeth grinding. Whenever I'd go into dentist appointments, they'd always mention something about my teeth grinding and recommended getting a mouth guard, which I didn't pursue due to expense. Oddly enough, they never mentioned magnesium. When I started taking magnesium supplements every day, my grinding almost completely stopped. I now notice after a couple days if I haven't taken it, my jaw starts tensing up again and naturally reverts into clenching mode. I don't have any medical expertise or evidence to back its effectiveness, but it sure worked for me. Worth a try before exploring other options.