Most 16-month-olds have between 4 and 12 teeth, with many falling somewhere around 8 to 10. That’s a wide range, and it’s completely normal. Tooth eruption follows a general sequence, but the timing varies significantly from one child to the next.
What Teeth Are Typically In by 16 Months
The first teeth to appear are usually the lower central incisors (the two bottom front teeth), which come in between 6 and 10 months. The upper central incisors follow at 8 to 12 months, then the upper lateral incisors at 9 to 13 months and the lower lateral incisors at 10 to 16 months. That gives most children their full set of 8 front teeth (4 on top, 4 on the bottom) by around 16 months, though some kids are still finishing up those lower lateral incisors right at this age.
Beyond the front teeth, the first molars are the next to arrive. The upper first molars typically erupt between 13 and 19 months, and the lower first molars between 14 and 18 months. So at 16 months, your child may already have one or both pairs of first molars pushing through, or they may not have started yet. If those molars are in, the total count could be closer to 10 or 12.
The upper canines (the pointed teeth between the incisors and molars) begin erupting around 16 to 22 months, so a 16-month-old is right at the earliest edge of that window. Most children won’t see canines for another few months. The lower canines follow at 17 to 23 months, and the second set of molars doesn’t arrive until well after age 2.
Why Some Toddlers Have More or Fewer
Genetics is the biggest factor in eruption timing. If you or your partner were early or late teethers, your child is more likely to follow the same pattern. Sex plays a role too: girls tend to get their teeth slightly earlier than boys. Premature birth, low birth weight, and nutritional status can also shift the timeline. Vitamin D deficiency, for instance, can delay the appearance of baby teeth and even alter the order in which they come in. Vitamin A deficiency during tooth formation can interfere with enamel development.
Some perfectly healthy toddlers don’t get their first tooth until after their first birthday, which means at 16 months they might only have 2 or 4 teeth. Others are early bloomers with a dozen teeth by the same age. Both scenarios fall within the normal range.
When Fewer Teeth Could Be a Concern
Delayed tooth eruption is diagnosed when teeth emerge at a time that falls significantly outside the expected range for a child’s age, sex, and background. Clinically, this means the timing deviates by more than two standard deviations from the average. In practical terms, if your child has no teeth at all by 12 to 13 months, it’s worth mentioning to your pediatrician or dentist. By 16 months, most children should have at least a few teeth visible. A complete absence of teeth at this age doesn’t necessarily signal a problem, but it warrants a closer look to rule out nutritional deficiencies or other underlying causes.
Teething Symptoms at This Age
If your 16-month-old is working on first molars, you may notice a rougher round of teething than you experienced with the front teeth. Molars have a larger surface area breaking through the gum, which can mean more discomfort. Common signs include swollen, red, tender gums at the back of the mouth, increased drooling, fussiness, difficulty sleeping, loss of appetite, and more biting or chewing on objects. These symptoms are temporary and typically resolve once the tooth fully breaks through the gum surface.
Some parents notice their toddler pulling at their ears or refusing certain foods during molar eruption. This is common. The pressure from a large tooth pushing through can radiate discomfort to nearby areas. Chilled (not frozen) teething rings or a clean, cold washcloth to chew on can help.
Caring for Your Toddler’s Teeth
Even with just a few teeth, oral hygiene matters. Start brushing with a soft-bristled toothbrush as soon as the first tooth appears. For children under 3, the recommended amount of fluoride toothpaste is a smear about the size of a grain of rice. Fluoride strengthens enamel and makes it harder for bacteria to produce the acid that causes cavities.
Nutrition also plays a direct role in how well teeth develop. Calcium and vitamin D are essential for building strong teeth through a process called calcification. Protein supports tooth formation, while vitamins C and K help keep gum tissue healthy and control bleeding. A diet that includes dairy or fortified alternatives, fruits, vegetables, and adequate protein covers most of these needs. If your child is a picky eater, your pediatrician can help determine whether a supplement makes sense.
The American Academy of Pediatric Dentistry recommends that children see a dentist within 6 months of getting their first tooth, or by their first birthday. If your 16-month-old hasn’t had a dental visit yet, it’s a good time to schedule one. These early visits are short and simple, focused on checking that teeth are developing normally and that the gums look healthy.
The Full Baby Teeth Timeline
Children eventually get 20 primary (baby) teeth total: 10 on top and 10 on the bottom. Here’s the typical eruption order and timing:
- Lower central incisors: 6 to 10 months
- Upper central incisors: 8 to 12 months
- Upper lateral incisors: 9 to 13 months
- Lower lateral incisors: 10 to 16 months
- First molars (upper and lower): 13 to 19 months
- Canines (upper and lower): 16 to 23 months
- Second molars (upper and lower): 23 to 33 months
Most children have their complete set of 20 baby teeth by age 3. These teeth serve as placeholders for permanent teeth, which begin replacing them around age 6. Keeping baby teeth healthy matters because premature loss from decay can cause spacing problems for the adult teeth that follow.