By Dr Duncan Houston
Finding a tiny tooth beside a kitten’s food bowl can be part of growing up. Discovering a missing or loose tooth in an adult cat calls for a dental examination, even if they still eat.
The visible gap does not reveal what is happening below the gum. A broken crown or resorbing tooth can leave roots or painful disease that needs treatment.
Quick Answer
Kittens normally replace their baby teeth during their first months of life, with the adult set usually present by around six to seven months. Adult tooth loss is not an expected consequence of ageing and may reflect periodontal disease, tooth resorption or injury. Arrange a veterinary dental check for a newly missing or loose adult tooth; trauma, bleeding, swelling or poor eating needs prompt attention.
When is losing a tooth normal?
Cats usually have 26 baby teeth and 30 permanent teeth. MSD’s feline dental development guide explains the change between these sets. Owners may never find the baby teeth because kittens often swallow them as they loosen.
A baby tooth that remains beside its emerging adult replacement is different from normal shedding. Veterinary guidance on persistent baby teeth describes crowding and an abnormal bite as reasons for timely assessment. Do not pull a loose tooth yourself or wait automatically until a planned neutering appointment.
Why do adult cats lose teeth?
Periodontal disease: inflammation damages the tissues and bone anchoring the tooth, allowing it to loosen. The problem extends beneath the gum; removing visible tartar alone cannot restore lost support.
Tooth resorption: the body breaks down tooth structure. This can be painful, and the crown may disappear while changes continue below the gum. Its cause is not fully understood, and it is not simply a cavity caused by eating sugar.
Trauma: a fall, collision or chewing injury can break or displace a tooth. Oral tumours and other destructive disease are less common possibilities. Cornell’s guide to feline dental disease explains periodontal disease and resorption in more detail.
How urgent is the tooth problem?
| What you notice | What it means | What to do and when |
|---|---|---|
| Small baby tooth lost; kitten eating comfortably | May be normal teething | Mention it at the next kitten check; seek advice if unsure of age or tooth type. |
| New gap, loose adult tooth or broken crown | Disease may remain below the gum | Arrange a prompt dental examination. |
| Drooling, facial swelling, bleeding or reduced eating | Pain, infection or injury is possible | Contact your vet today. |
| Major facial trauma, uncontrolled bleeding or breathing difficulty | Potential serious injury | Emergency care now. |
What else can look like a missing tooth?
A tooth may be unerupted, absent from development or previously extracted. A retained root can be hidden by healed-looking gum. Dental radiographs help distinguish these situations. Bad breath or chewing changes can also come from stomatitis or a mouth lesion even when no teeth are missing.
When is this an emergency?
Seek immediate care after major facial trauma or if bleeding will not stop, breathing is difficult or the jaw cannot close normally. Do not force the mouth open or attempt to reposition a tooth. If a tooth has just been knocked out, call the clinic immediately because available options may be time-sensitive; bring it if easily found without delaying transport.
What should you do next?
- Record when the change was noticed and whether there was an injury. Note drooling, food dropping and changes in appetite or grooming.
- Photograph the visible area only if your cat remains comfortable. Avoid poking the gap or repeatedly testing tooth movement.
- Offer their usual food in a softer form if they can eat comfortably while awaiting advice. A cat that cannot eat needs same-day help, not repeated food trials.
- Discuss an anaesthetised oral examination and dental radiographs where indicated. Ask what each affected tooth needs and how pain will be managed.
- Follow postoperative feeding and recheck instructions, and report ongoing bleeding, swelling or poor intake.
Treatment aims for a comfortable mouth
Care may involve professional cleaning, periodontal treatment or removal of painful, unsalvageable teeth. Resorption treatment depends on radiographic findings; leaving roots is appropriate only for carefully selected situations assessed by the veterinary team. Antibiotics do not fix a fractured tooth or replace necessary dental treatment.
Many cats function well with fewer teeth once painful disease is treated. Their diet and recovery plan should suit the individual mouth; a missing tooth does not automatically mean lifelong liquid food.
Common mistakes
- Assuming an older cat should naturally lose teeth.
- Using continued eating as proof that the mouth is painless.
- Brushing directly over sore gums or a recent extraction site.
- Offering bones or very hard objects to clean the remaining teeth.
Protecting the remaining teeth
Once comfortable, introduce gentle brushing with a cat-safe toothpaste and a routine your cat accepts. Schedule dental assessment as advised, including checks during kitten development. Home care helps plaque control but cannot reliably prevent tooth resorption or remove disease beneath the gum.
Frequently Asked Questions
Will an adult tooth grow back?
No. Cats have one permanent set, so a lost adult tooth is not replaced naturally.
Is a cat with no teeth able to eat?
Many can eat a complete diet comfortably after healing. Texture should be adjusted to the cat and the veterinary plan.
Does a missing crown mean the whole tooth is gone?
No. Dental imaging may reveal retained roots, resorption or other disease beneath the gum.
A gap in an adult cat’s smile deserves an explanation. Treating hidden pain and protecting the remaining teeth matters more than preserving every tooth at any cost.
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