Updated on April 30, 2023

Sometimes, our dogs will do the most hilarious things, like make a funny noise or respond in a completely unexpected way. A dog’s leg may kick if you rub its tummy, and a licking session may result in a sudden case of chattering teeth.

On other occasions, you may see your dog’s teeth chattering and jaw trembling as though it were chilly outside. In any case, what causes dogs to chatter their teeth, and should we be worried about it?

What causes dogs’ teeth to tremble?

The chattering of your dog’s teeth might not be something to worry about. Our woofers have many peculiar ways of expressing their feelings, like chattering their teeth, despite the fact that it may sound bizarre.

The chattering of your dog’s teeth, though, may be a sign that he is uneasy. It’s important to comprehend the reasons why dogs chatter their teeth and how to stop your dog from doing it. So let’s investigate the various causes of canine tooth grinding.

YOU Are the Owner of a Very Calm Dog.

When it gets cold, dogs shiver and clatter their teeth just like humans do. Many small dog breeds, including the Chihuahua, and lean dog varieties like the Whippet are thought to be more sensitive to cold than people.

The first thing you should do when it’s chilly outside and your dog’s teeth are chattering is move their bed somewhere warmer, throw a jumper on them or give them a blanket to wrap up beneath.

It’s important to check your dog’s temperature and watch for any signs of illness since interestingly, shivering and chattering teeth are indicators of fever in dogs.


When dogs are experiencing intense emotions, such as enthusiasm, they may start to chatter their teeth. When dogs become particularly amped up, as right before mealtime or when they obtain a new toy, they may start chattering their teeth. While every dog is at risk, it may be more common in working dogs or those with a strong prey drive.

What causes a dog’s teeth to chatter?

When a dog does this, why are they making that noise?
Similarly like dogs, cats will often bare their teeth in excitement. If you have a cat, you’ve probably noticed that they make a lot of noise when they see birds outside, chittering to themselves and chattering their teeth.

A Symptom of Anxiety

When it comes to the body, the physiological responses prompted by excitement and fear are extremely similar to one another. This explains why many signs of excitement and fear in dogs share similar body language. Your dog’s teeth chattering could be an indication of anxiety or stress. When dogs are feeling apprehensive or nervous, they may start shivering and making noises like they have a cold.

Anxious dogs are more prone to exhibit this behaviour. Greyhounds, like many other dog breeds, may be more prone to teeth-chattering when they’re anxious.


Your dog has a vomeronasal system, also known as the Jacobson’s Organ, which is an organ that contributes to its olfactory system. It is located on the top of your dog’s mouth, behind their front teeth, and it is sensitive to pheromones.

It may come as a surprise, but even humans possess this peculiar sense of smell. Actually, it can be found in the back of the mouths of nearly all mammals, typically behind the incisors.

While this organ is great for detecting pheromones, it has the unfortunate side effect of occasionally making your dog bare its fangs. This isn’t something that happens frequently or with every dog. It’s possible that this is what’s causing your dog’s teeth to chatter, but a cold or sore mouth are far more plausible explanations.


Your dog’s teeth chattering may not necessarily indicate that he or she is either cold or eager to play. Keep a close eye on your furry buddy, listen for other signs of disease, and consult your vet if you notice any changes, including chattering teeth. I’m curious, though: what else might cause teeth to chatter?


Canine periodontal disease, often known as gum disease, is a common cause of canine teeth chattering. Unfortunately, about 90% of dogs suffer from some form of gum disease. Because of how widespread this problem is, it’s one of the most plausible explanations for why your dog’s teeth are chattering.


Anxious jaw movement and teeth chattering could indicate gum disease or a sore tooth in your dog. To alleviate the discomfort of a toothache or rotting, your dog may chatter its teeth. Pain in the mouth, such as that from gum disease, tooth decay, a toothache, or another source, is a common cause of chattering teeth.


While a sore mouth is the most common cause of a dog’s teeth chattering, it can also be an indication of discomfort elsewhere in the dog’s body. In the event that your dog exhibits pain signals like gnashing of teeth and whining, it’s best to consult a veterinarian.


A symptom of epilepsy is a rattling of the teeth. Focal seizures only affect one side of the dog’s body or a specific area of the dog’s body, like the face, and are therefore very small and localised. Facial twitching and teeth chattering are two symptoms that may accompany a focal seizure in some dogs. Other neurological diseases can also induce teeth chattering.

Why do canines’ teeth chatter after being licked, exactly?

Your dog’s teeth may rattle after it has been licking something for a while. Because your dog’s Jacobson’s Organ has been activated while he or she has been licking and sniffing, the teeth may be chattering after a session of licking. The clattering of teeth could either be an impulsive reaction, or it could be the result of a muscular spasm in the jaw from all that licking. The cause of a dog’s teeth chattering after licking is unknown, but as long as it stops soon after it begins, it’s not cause for concern.

What causes a dog to grind its teeth?

You can tell the difference between grinding and chattering your teeth by the sound they create. Teeth “click” together rapidly, and the jaw moves rapidly up and down. Meanwhile, teeth grind against one another, moving forward and backward.

There are three primary causes of canine teeth grinding, or bruxism. The first possibility is that your dog is experiencing tooth or gum discomfort. Grinding one’s teeth may be an attempt to dull pain, similar to chattering.

Like humans, dogs can clench their jaw and grind their teeth when they’re feeling frightened or nervous.

Last but not least, if your dog grinds its teeth at night, it could be an indication that something is amiss with the way its jaw moves. Always consult your veterinarian if you notice that your dog is grinding his or her teeth.


If your dog suddenly begins chattering his teeth and has never done so before, it’s crucial to determine the underlying cause.

Your vet can help you figure out why your dog is chattering its teeth and can give you advice on how to stop it. Any underlying health issues, such gum disease, can be diagnosed and treated by your vet. Insistent teeth chattering in a dog is a clear sign that he or she needs to see the vet.

Check for signs of excitement in your dog’s body language. Examine your dog for indicators of happiness, such as a grin and a lolling tongue, and think about what might be making him or her happy, such as a new toy or the fact that it’s time for walks or dinner.

Examining your puppy’s body language for signs of anxiety, including ears pinned back and a tucked tail, is also important. Consider whether there has been any change at your home, such as a new person moving in, driving, or even a strange cat in the garden, that could have unsettled your dog.

If your dog’s teeth are chattering and you’re worried about its temperature, you should take its temperature to rule out the possibility that it has a fever. Have your dog sit in a warmer area, perhaps with a blanket, and see if that improves their condition.

When your dog’s teeth chatter, something may be wrong. It’s best to consult your vet if your pet is experiencing chattering teeth; oral pain is a common cause. Make sure you’re taking care of your dog’s teeth by cleaning them on a regular basis.





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