[amelius]

A related question: why do some (actually a lot of) people grind their teeth during sleep?

According to wikipedia: The ICSD-R states that 85–90% of the general population grind their teeth to a degree at some point during their life, although only 5% will develop a clinical condition.

[swsieber]

I'm not sure, but anecdotally, one person I know said that it had been an issue, until he started limiting how much liquid he drank starting 3-4 hrs before bed.

[smaili]

Have their been any notable causes? My money is on stress.