General guidance — not a diagnosis. When in doubt, call your vet.
A changing kitten mouth
Kittens first grow baby teeth and then replace them with permanent teeth. Chewing and mouth exploration can occur during this busy stage, but chewing is not a diagnosis: boredom, play, hunger, stress, and an oral problem can look similar.
A feline dentistry review reports that a kitten’s 26 deciduous teeth erupt between 2 and 6 weeks of age and a cat’s 30 permanent teeth erupt between 3 and 6 months of age.[1] These are broad eruption windows, not a deadline for every individual tooth. You may never find a shed baby tooth because it can disappear during normal daily activity.
What normal change can look like
A teething kitten may investigate textures with the mouth, briefly prefer a softer toy, or show mild gum sensitivity. Appetite, energy, and comfortable eating should remain the anchors. Persistent pain, marked bleeding, facial swelling, or inability to eat should not be written off as teething.
Check the mouth only when your kitten is relaxed. Lift the lip gently rather than forcing the jaws open. Look for symmetry, obvious swelling, a broken tooth, or two teeth occupying the same position. Merck explains that normal replacement involves the deciduous tooth exfoliating before its permanent successor erupts; a baby tooth may persist if the permanent tooth erupts in an abnormal position.[2]
A temporary glimpse of a changing gumline is different from a stable “double row.” AAHA recommends addressing a retained deciduous tooth as a permanent tooth starts to erupt because crowding can displace the permanent tooth and contribute to malocclusion or periodontal disease.[3] Do not pull a loose or retained tooth at home. Its root and the developing permanent tooth cannot be assessed by appearance alone.
Make chewing safer
Redirect chewing without punishing normal exploration. Offer several kitten-safe toys with different shapes and rotate them. A toy should be too large to swallow, free of loose strings or pieces, and soft enough that it does not invite forceful biting against a hard surface. Remove damaged toys promptly.
Manage the environment as carefully as the toy box:
- Cover or block electrical cords.
- Put thread, ribbon, dental floss, hair ties, needles, foam, and small plastic pieces away.
- Keep toxic plants, medicines, nicotine products, and household chemicals inaccessible.
- Interrupt chewing calmly and redirect to a safe toy instead of chasing or scolding.
Set up food, litter, rest, play, and supervision routines with the new-kitten first-week checklist. If chewing suddenly increases, note what your kitten targets, when it happens, whether eating has changed, and whether you see drooling or pawing at the mouth. That history helps a veterinarian separate developmental behavior from pain or another problem.
Build gentle dental habits
Teething is a poor time to force a toothbrush into a sore mouth. AAHA notes that juveniles actively shedding deciduous teeth may feel discomfort during home dental care and that negative experiences should be avoided.[3] Begin with calm, reward-based face and lip handling. Stop if your kitten pulls away, cries, or becomes distressed.
Ask at the kitten’s first veterinary visit for an oral examination and an individualized plan. Once the mouth is comfortable and permanent teeth have erupted, the cat tooth-brushing guide can help you introduce a routine gradually. If bad breath, inflamed gums, or eating changes persist beyond the expected transition, review the broader signs of feline dental disease.
When to See a Vet
- Your kitten cannot eat, repeatedly drops food, cries while chewing, or becomes unusually quiet.
- There is facial swelling, heavy or ongoing mouth bleeding, pus, a foul odor, or a visibly broken tooth.
- A permanent tooth is erupting beside a baby tooth, creating a persistent double row.
- Your kitten swallowed string, floss, a needle, an electrical-cord fragment, or another unsafe object.
For cat owners
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Frequently Asked Questions
When do kittens get their baby and permanent teeth?
A feline dentistry review reports that a kitten’s 26 baby teeth erupt between 2 and 6 weeks, while the 30 permanent teeth erupt between 3 and 6 months.[1] Individual teeth do not all change on one day, so use the mouth exam—not a calendar alone—to judge a concern.
Is chewing proof that my kitten is teething?
No. Mouth exploration can accompany dental development, but play, boredom, stress, hunger, and oral pain can also drive chewing. Look at appetite, comfort, energy, the object being chewed, and the mouth itself.
Should I pull out a loose baby tooth?
No. Do not tug, twist, or cut a kitten’s tooth. A veterinarian can determine whether it is shedding normally, broken, or retained and whether the permanent successor is positioned correctly.
What does a retained baby tooth look like?
It may look like two teeth crowded into one position, often described as a double row. Merck states that a deciduous tooth should be extracted when it remains after its permanent successor has begun erupting, so book an exam rather than waiting or pulling it yourself.[2]
Can I brush my kitten’s teeth during teething?
Start with gentle lip handling, but pause brushing if the mouth seems sore. AAHA says juveniles actively exfoliating deciduous teeth may experience discomfort with home dental care and negative experiences should be avoided.[3]
What can my kitten chew safely?
Choose intact, kitten-safe toys that are too large to swallow and not hard enough to risk tooth injury. Supervise new items, discard anything frayed or broken, and keep string, floss, hair ties, cords, and small pieces out of reach. Recheck toys often because a safe item can become unsafe after it frays, cracks, or loses pieces during repeated play.
References
- Reiter and Soltero-Rivera, Journal of Feline Medicine and Surgery, 2014 — Applied feline oral anatomy and tooth extraction techniques. https://pmc.ncbi.nlm.nih.gov/articles/PMC11044610/
- Mulherin, Merck Veterinary Manual Professional, 2024 — Developmental abnormalities of the mouth and dentition in small animals. https://www.merckvetmanual.com/digestive-system/dentistry-in-small-animals/developmental-abnormalities-of-the-mouth-and-dentition-in-small-animals
- American Animal Hospital Association, 2019 — Preventing periodontal disease. https://www.aaha.org/wp-content/uploads/globalassets/02-guidelines/dental/aaha_dental_guidelines.pdf