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Why Is My Dog Missing Teeth? 5 Vet Reviewed Reasons

Written by: Jessica Kim

Last Updated on June 4, 2024 by Dogster Team

vet checking dog's teeth

Why Is My Dog Missing Teeth? 5 Vet Reviewed Reasons


Dr. Ashley Darby Photo


Dr. Ashley Darby

BVSc (Veterinarian)

The information is current and up-to-date in accordance with the latest veterinarian research.

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Dental hygiene is an essential yet often ignored part of dog care. With dental issues being very common in dogs, proper maintenance of their teeth will significantly lower the risk of tartar buildup, gingivitis, and other dental diseases. Part of dental maintenance includes examining your dog’s teeth and knowing if any are fractured or missing.

An adult dog has 42 teeth, but it’s difficult to count them all. So, if you suspect that something’s wrong with your dog’s teeth, it’s best to schedule an appointment with your veterinarian for a more thorough examination. Your veterinarian can determine if your dog has lost a tooth and also find out what caused it. Here are some possible reasons your dog may be missing teeth.

dogster paw dividerThe 5 Reasons a Dog Is Missing Their Teeth

1. Teething During Puppyhood

The only normal and healthy cause of loose teeth or missing teeth is puppies going through their teething phase. Dogs have two sets of teeth throughout their entire lifetime. Their puppy teeth, or deciduous teeth, typically start to grow in when they’re about 3 weeks old. They then start to fall out when puppies reach 12 weeks old. Their deciduous teeth will be replaced by their adult teeth, which they’ll keep for the rest of their lives.

A puppy’s deciduous teeth usually fall out on their own without any assistance. It’s also common for puppies to accidentally swallow their loose teeth, so you may just see missing teeth in a puppy’s mouth.

happy golden retriever showing its teeth
Image Credit: jiayun, Shutterstock

2. Accident or Physical Trauma

Teeth can fracture and fall out if enough blunt force is applied against your dog’s jaw or mouth area. So, dogs can lose teeth if they get into accidents, like landing on their faces or falling from a significant height.

If your dog’s tooth falls out due to an injury, it is likely that some remnant of the tooth remains in place. Even if it’s not visible the roots can still be there. There can also be damage to the jaw, like a fracture or cuts, so seeing a veterinarian promptly is important in this scenario. At the very least, your dog will need some pain relief.

3. Hard Chew Toys

Dogs can risk fracturing or losing teeth if they are chewing on the wrong type of chew or toy. So, they must only be given chews that are appropriately sized. Chews also range from soft to hard, and chews that are too hard can end up damaging a dog’s teeth. Dogs that are given chews that are too large and hard are more susceptible to fracturing or chipping their teeth.

beagle puppy chewing squeaky toy
Image Credit: tetiana_u, Shutterstock

4. Periodontal Disease

Periodontal disease is, unfortunately, a common health issue in dogs. This disease refers to infection and inflammation of the gums and tissues surrounding the tooth root. The precursor to periodontal disease is gingivitis. If left untreated, the disease will reach deeper into the tooth socket. It can cause pain, bad breath, and infection in the jaw, before the teeth fall out. Other signs of periodontal disease include tartar buildup, inflamed gums, gum recession, and bleeding gums.

5. They Never Erupted

When teeth develop, they do so within the jaw and push their way into the mouth when it is time for them to erupt. Unerupted teeth are a problem as they can form dentigerous cysts within the jaw which can cause problems with the jaw and surrounding teeth. They may not erupt for genetic or developmental reasons, like abnormal positioning, overcrowding, and reduced force of eruption.

Veterinarian checking dog's teeth
Image Credit: Zontica, Shutterstock

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What to Do if Your Dog Loses a Tooth

If you notice any fractured or missing teeth in your dog’s mouth, contact your veterinarian right away. Your veterinarian can examine the space of the missing tooth to determine if there are remaining pieces that need to be extracted.

Since tooth loss isn’t normal, it’s important to get your dog to a veterinarian so that they can diagnose its cause. They can also determine if the surrounding teeth have been affected and require additional attention and treatment.

If your dog loses a tooth due to an accident or injury, do your best to locate the missing tooth and bring it to your veterinarian. It can help your veterinarian determine if the whole tooth came out and if they need to extract the rest of the tooth from your dog’s mouth.

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In most cases, tooth loss will require a visit to your veterinarian. They often indicate dental disease or require additional attention to ensure the tooth has been fully extracted. So, if you notice any missing or fractured teeth in your dog’s mouth, make sure to get them to veterinary care as soon as possible.

Featured Image Credit: YAKOBCHUK VIACHESLAV, Shutterstock

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