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Some dogs chatter their teeth when they are excited about a female in heat. My dogs do this when they are around a female that has gone into season. It is somewhat freaky huh? It is so very natural !!no worries.

There could be a number of reasons why.

1) your dog may be cold

2) your dog may have a tooth ache or gum disease

3) your dog may be older (a symptom of old age)

4) he may teeth-chatter before barking. It can be in anticipation, if he is very excited/upset

5) your dog may just like the way it feels/ it may be a habit

6) your dog may have a serious illness like a neurological problem or cognitive disorder (brain illness)

If there are other symptoms, like he appears to be in pain when you touch his cheek, call your vet! (If he is cold, put a sweater on him or turn up the heat in the house!)

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Wiki User

15y ago

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