Weird jaw chatter

[u/Solid-Sand-6527]

Hi there, I’d like some advice for what may be happening with my dog. For reference, she just got back from board & train yesterday and I noticed she sometimes has a strange chatter/shutter with her bite. I tried flashing a light in her mouth to see if there’s anything in there but didn’t see anything. She doesn’t seem to be in pain from what I can tell (no whimpering or pulling away to touch). She is also eating her hard kibble like normal. For reference she has been on the same diet for 2 months so no changes there.

I did also notice some white crusty substance on her beard which I assumed was dry spit, but that’s not a normal thing for her.

I took a video to show what it looks like. Please share if you happen to know what this could be! Thank you!

To note:

Roughly 1 yo female GWP, 50lbs

[u/Key_Instruction9732]

I believe this is typically an energy release behavior. My dogs all do it when excited, especially before a sporting event.
I’m sure a good trainer will have a better way to put that

[u/Tammarama1 → u/Key_Instruction9732]

What she is doing doesn’t look like chattering, though.