When Do Babies Get Their First Tooth? A Timeline for Parents

Baby teeth usually start coming in around six months, though the normal range runs from four months to a full year. Knowing the typical timeline, the order the teeth appear, and how to care for that first tooth helps you tell normal development from something worth a call. Here’s what to expect from the first tooth through a full set, and when the first tooth is the signal to book a dental visit.

Quick answer: Most babies get their first tooth between 6 and 12 months, with around 6 months being typical. The lower front teeth, the central incisors, almost always come in first. Some babies have no teeth at their first birthday, which is still within the normal range. Most children have all 20 baby teeth by age 3.

When the first tooth usually appears

The first tooth usually breaks through around six months, but the normal range is wide, stretching from about four months to a full year. A baby with no teeth at their first birthday is still developing normally, and late teething on its own is rarely a cause for concern. Genetics play a large role here: if you or your partner were early or late teethers, your baby often follows the same pattern. What matters is the overall trajectory, not hitting a specific month. There’s no advantage to teething early and no penalty for teething late. If a first tooth still hasn’t appeared by around 18 months, mention it at your next pediatric or dental visit, though even then it’s usually a variation of normal rather than a problem.

The order teeth come in

Baby teeth tend to arrive in a predictable sequence. The two lower front teeth (the lower central incisors) almost always come first, usually as a pair within a few weeks of each other. The two top front teeth follow a month or two later. After that come the lateral incisors on either side, then the first molars further back, then the pointed canines, and finally the second molars at the very back. By age three, most children have a full set of twenty baby teeth. The molars tend to be the most uncomfortable to cut because they’re broader and push through more gum tissue at once. Gaps between the new teeth are normal and even helpful, since they leave room for the larger permanent teeth that arrive years later.

The signs that come before the first tooth

Around three months, many babies start drooling heavily, putting their hands in their mouth, and exploring everything by chewing on it. Parents often read this as teething, but at three months it’s usually just normal development. Babies discover their hands and mouths well before any tooth is on the way, and the drooling and hand-chewing at this stage rarely mean a tooth is days away. True teething signs cluster closer to the actual eruption: a hard bump you can see or feel under the gum, more focused chewing, mild irritability that comes in waves, and a few disrupted nights when a tooth is actively cutting through.

Caring for the first tooth from day one

The moment that first tooth appears, brushing begins. Use a soft infant toothbrush or a clean damp cloth with a smear of fluoride toothpaste about the size of a grain of rice, twice a day. Before any teeth, you can wipe the gums with a damp cloth after feedings to build the habit. Skip the bottle in bed once teeth are present, because milk or formula pooling against new teeth overnight is a leading cause of early decay. Once your child turns three and can spit reliably, the toothpaste amount increases to a pea-sized smear; until then, the rice-grain amount keeps fluoride exposure safe if some gets swallowed. Starting cavity prevention this early can feel premature for a single tooth, but the habits you build now are the ones that stick.

When the first tooth means it’s time for a first visit

The arrival of the first tooth is the cue for the first dental visit. Pediatric dentists recommend that first appointment by age one, or within six months of the first tooth appearing, whichever comes first. That early visit isn’t about finding problems. It’s about checking that everything is developing on track, spotting early decay risk, and giving you a plan for brushing, fluoride, and feeding. It also lets your baby get comfortable with the office before any treatment is ever needed. Establishing this dental home early means you have somewhere familiar to call when a question or a worry comes up, instead of starting from scratch. If you notice white or brown spots on a new tooth, or the first tooth still hasn’t appeared by 15 to 18 months, the first visit is the place to have it looked at.