I've never tried Lupron. I do grind my teeth at night though. You should be able to buy a mouth guard over the counter to help save your teeth and jaws a little. I had a special ordered one from my dentist and it sucked. It was super hard plastic. I would recommend the store bought ones over a $500 one any day of the week.

Did you go to the doctor and ask them about it?

I was clenching my teeth a lot while on Lurpon. I only took a month dose and have been off for a little less than a month. Still have the hot flashes :/