Short answer
No. Once a cat has its permanent teeth, a lost tooth does not grow back. This includes the canines (the long fangs).
Kittens versus adult cats
Kittens grow 26 baby teeth, and these are replaced by 30 adult teeth during the first several months of life. That is the only time cats get a “second set”. See why a kitten’s tooth may fall out.
Why adult cats lose teeth
Losing an adult tooth is not normal ageing. Possible reasons include:
- Periodontal disease: Loss of the tissue and bone that hold the tooth in place.
- Tooth resorption: The tooth structure breaks down and may be lost or need removal.
- Trauma: A fall, a car accident, or a fight can break or dislodge teeth. See a broken canine tooth.
- Infection or abscess: Often around the root; see cat abscess on cheek.
Because there is often disease underneath, a lost tooth is a reason for a vet visit.
Do cats feel pain in their teeth?
Yes. Diseased or broken teeth can be painful, but cats often hide it and keep eating (see signs a cat is in pain). Subtle changes such as dropping food or avoiding hard kibble can be the only clues.
Why does it look like a new tooth?
Owners sometimes think a tooth has regrown. Vets suggest it is usually something else, such as a retained piece of root or a tooth that had not yet come through. A vet can check with dental X-rays.
What to do if you find a tooth
- Check your cat’s mouth if they allow it, and look for bleeding or swelling.
- Keep the tooth if you can, since it may help the vet.
- Book a veterinary exam, especially if your cat is an adult.
- Contact your vet sooner if your cat is not eating, is drooling, or has facial swelling.
Can cats live with missing teeth?
Many cats adapt well, including after multiple teeth are removed because of disease. Often a cat is more comfortable once the painful tooth is gone. See cat tooth extraction recovery.
At what age do teeth start going bad?
There is no exact age. Dental disease is common in adult cats and becomes more likely with age, so regular exams matter. For what to look for, see what healthy cat teeth look like and how often a cat needs dental cleaning.