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Dr. Gary
Dr. Gary, Dog Veterinarian
Category: Dog
Satisfied Customers: 2952
Experience:  DVM, Emergency Veterinarian; BS (Physiology) Michigan State Univ
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yorkie had jaw trembles after yawning, teeth were chattering

Customer Reply

Customer: replied 8 years ago.
6 month old male first time noticed that after yawning lower jaw trembled to the point that teeth chattered. happened several times in succession in a matter of 2-3 minutes.
Expert:  Jane Lefler replied 8 years ago.
Hi urme,

This could be caused by a problem in the mouth such as an abscessed tooth or dental disease. Check your dog’s mouth for tartar on the teeth, possibly red gums, darkened teeth, broken teeth or something caught between the teeth or gums. Additionally, an oral exam by the Vet can rule this out. Buffered aspirin can be given to a dog with a dosage of up to 5-10 mg per pound every 12 hours for pain if a tooth is the issue.. Keep in mind that a dog's body does not metabolize aspirin in the same way as a human and thus should not be given more than a day or two without contacting your Vet. Read side effects and precautions here.
http://www.petplace.com/drug-library/acetylsalicylic-acid-aspirin/page1.aspx

It could also be a sign of seizure activity, so I would be concerned. Focal seizures are a common problem. You may want to try and video tape it and take it into the Vet, so he can see exactly what is happening since it is hard to trigger in the office.

I hope this information is helpful to you.