I have always clenched my teeth. Bite guards are expensive and end up being completely out in the hallway. Some destroyed by pets or tossed in napkins at restaurants. I've only had one good one and could not keep it adjusted. I'm 86 next week. Do you think you can find an orthodontist who does botox. I'm told the difficulty is getting insurance to pay for it. I haven't found one near enough. Maybe just a pipe dream. But you asked 😉