Bruxism (Gurning/Grinding)

[Rudie]

Hey,

I was stopped in the street by some wierd-ass Gnu, he told me he took a load of Amphetamine with those spiders from mars.

He said he does it fairly often, and its cool for cats. He said the only problem was Bruxism (Tooth Grinding/Gurning), and wondered if there was anyway of stopping it or reducing it?

Seeing as the poor fellah had funky-fingers, he couldnt type, so I decided to ask on his behalf.