Teething runs in two clear acts for a kitten. The first teeth poke through early, front ones appearing at about two weeks and the full set usually in place near six weeks, starting with those small front teeth, then the pointed fangs, then the cheek teeth at the back. The second act runs from about three months to about six months, as adult teeth push the baby set out while the jaw lengthens, so a kitten can look different month by month without anything being wrong.
The Baby Set Arrives First
Newborn kittens are toothless, which protects the mother during nursing. The first front teeth appear at about two weeks, and by about six weeks the mouth is usually fully armed. That full baby set has twenty-six teeth and no molars, because a nursing kitten needs to bite and tear only once weaning begins, not grind. These teeth are needle sharp, which is why a playing kitten learns from littermates that hard bites end the game. You rarely need to do anything during this stage beyond gentle looking. Lift the lip briefly during cuddles now and then so mouth checks feel ordinary long before adult teeth arrive.
The Changeover Months
From around three months the adult set starts its work, front teeth first again, and the changeover rolls on to about six months. Most baby teeth loosen, fall, and get swallowed with food, so finding one is a bonus rather than an expectation. The adult set has thirty teeth, including molars at the back for the first time. Expect more chewing on toys and cardboard, slightly pink gums around emerging teeth, and occasional bad breath days that pass. Offer firm kitten-safe chew toys, keep cables and string out of reach, and soften food for a day or two if a kitten eats gingerly, while a kitten who stops eating, paws at the mouth, or smells strongly bad needs a vet rather than patience.
Watching for a Retained Tooth
Comfort during the swap matters more than most owners expect. A kitten whose gums are tender may approach the dish eagerly and then back away, shake the head while eating, or drop food repeatedly, and a day or two of softer meals usually bridges the sore patch. Keep fresh water down, offer meals little and often, and resist opening the mouth daily for inspection, since a quick look during a cuddle tells you enough. Kittens who chew furniture corners or cables during this stage need redirection to legal targets and cables lifted out of reach, not punishment for a mouth that hurts. Siblings can pass through the whole change at noticeably different speeds, so judge each kitten against their own mouth rather than the litter average, and photograph a worrying tooth if you want your vet to see exactly what you saw.
The one finding worth acting on is a baby tooth still in place beside its adult replacement, most often an upper fang standing double. Two teeth in one socket crowd together, trap food and plaque against the gum, and can push the adult tooth off line. Raise it with the vet at the next visit rather than wiggling it yourself, and note when you first spotted it. Gentle weekly lip lifts make spotting easy, and a quick note of dates helps your vet judge whether the baby tooth is simply late or truly stuck, because KinsLe designed Pet Passport so growth notes, mouth checks, and appointment comments sit in a single packet your vet can read at a glance.