Most 12-month-olds have between two and eight teeth, with six being a common number at this age. The range is wide because tooth eruption varies significantly from baby to baby. Some one-year-olds already flash a full set of eight front teeth when they smile, while others are just getting their first pair.
Which Teeth Come In by 12 Months
Baby teeth follow a fairly predictable order, even if the timing differs. The two bottom front teeth (lower central incisors) are usually the first to appear, breaking through between 6 and 10 months. Next come the four upper front teeth: the two upper central incisors typically arrive between 8 and 12 months, with the upper lateral incisors close behind at 9 to 13 months. The lower lateral incisors tend to show up a bit later, between 10 and 16 months.
So at exactly 12 months, a baby who’s right on the average timeline will likely have their two bottom front teeth plus their four upper front teeth, totaling six. Some babies will also have one or both lower lateral incisors starting to push through, bringing the count closer to eight. Others, particularly those who got a late start, may have only two or four.
What If Your Baby Has Fewer Teeth
Having fewer than six teeth at 12 months is not unusual and is rarely a sign of a problem. Some perfectly healthy babies don’t cut their first tooth until 12 or even 14 months. Genetics play a large role: if you or your partner were late teethers, your baby likely will be too. Premature birth can also shift the timeline, since tooth development follows biological age rather than calendar age.
If your baby has no teeth at all by 18 months, that’s the point where most pediatric dentists want to take a closer look. Before that threshold, a toothless grin is just a variation of normal.
First Molars Are Coming Next
Right around the first birthday, you may start noticing signs that the next wave of teeth is on its way. The first molars, the broader teeth toward the back of the mouth, typically come through between 12 and 16 months. Molars are larger than incisors and can cause more discomfort as they push through the gums.
Common teething signs at this stage include red, swollen gums where the tooth is breaking through, one flushed cheek, increased drooling, gnawing on anything within reach, ear rubbing, disrupted sleep, and general fussiness. A mild temperature below 38°C (100.4°F) can also accompany teething. High fever, diarrhea, or vomiting are not teething symptoms and point to something else.
Caring for Those First Teeth
Even if your baby only has two teeth, they need brushing. Use a baby toothbrush with a tiny smear of fluoride toothpaste, about the size of a grain of rice. That small amount provides enough fluoride to protect the enamel without posing any risk if swallowed. Brush at least twice a day, with one of those times being right before bed.
The easiest technique at this age: sit your baby on your lap with their head resting against your chest, so you can see into their mouth and reach all surfaces. Brush in small circles, covering the front, back, and chewing surfaces of each tooth. Encourage spitting out the toothpaste afterward, but don’t rinse with water. Skipping the rinse lets the fluoride stay on the teeth longer.
Your baby’s first dental visit should happen by their first birthday or within six months of their first tooth, whichever comes first. This initial visit is more of a quick check than a full cleaning. The dentist will look at how the teeth are coming in, check the gums, and talk through any questions you have about feeding habits or oral care.
The Full Baby Teeth Timeline
Babies eventually get 20 primary teeth in total. Here’s the general order after those first incisors:
- Central incisors (bottom): 6 to 10 months
- Central incisors (top): 8 to 12 months
- Lateral incisors (top): 9 to 13 months
- Lateral incisors (bottom): 10 to 16 months
- First molars: 12 to 16 months
- Canines: 16 to 23 months
- Second molars: 23 to 33 months
Most children have their complete set of 20 baby teeth by age 3. These teeth will serve them until they start falling out around age 6, gradually making way for 32 permanent adult teeth over the next several years. The spacing, alignment, and health of baby teeth matter because they hold space for the permanent teeth forming beneath the gums.