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Our 2 1/2 year old female GSP has started to grind her teeth and it drives us crazy when she does it. Usually in the morning when she stretches and yawns and then closes her mouth and she grinds them as she does this. It's not a constant thing, but the sound is worse than fingersnails scraping on a blackboard. Anyone else?
Sorry i cant help, but just wanted to let you know you're not alone in wondering about this - Keely also does the same. I think she also does it when closing after a yawn. It actually sets me on edge when she does it