What Is the Average Age Kids Lose Teeth? A Complete Timeline for Parents

Key Takeaways

• Children typically lose their first tooth between ages 5 and 7, starting with the bottom front teeth, though the range is 4 to 8 years old
• All primary teeth are usually gone by age 12, replaced gradually by permanent teeth that continue erupting until the late teens
• Early or late tooth loss varies normally; genetics play a big role, and unless teeth are missing or severely delayed, early intervention usually isn’t needed

The Timeline of Tooth Loss in Children

Your child wiggles a front tooth at dinner. “It’s loose!” they announce excitedly. You smile, knowing the tooth fairy’s visit is coming, but you also wonder: is this normal timing? Should their tooth be loose now? What comes next? Understanding the average age kids lose teeth helps you know whether your child’s development is on track and what to expect in the months and years ahead.

Children lose their primary teeth (baby teeth) in a predictable sequence, though the timing varies more than many parents realise. Most children lose their first tooth around age 5 or 6, but normal range extends from age 4 to age 8. Some children start losing teeth at 3, while others don’t lose their first tooth until they’re 9. All of these scenarios can be completely normal.

The process of losing all baby teeth happens gradually over years. A child doesn’t lose one tooth and then wait. Instead, loose teeth come in waves. Your child might lose two teeth over several months, then have a gap with nothing loose, then suddenly have three teeth wiggling at once. This pattern continues until all 20 primary teeth have been shed and replaced by the permanent teeth underneath.

When Babies First Get Teeth and Later Lose Them

Primary Teeth Eruption Timeline

Before teeth can be lost, they have to come in. Baby teeth start erupting around 6 months of age, though the range is 3 to 12 months. By age 2.5 to 3 years, most children have their full set of 20 primary teeth. These are the teeth that will eventually be lost and replaced.

The order of eruption isn’t random. Lower front teeth typically come in first, followed by upper front teeth. From there, the pattern moves backward toward the molars. By age 3, your child likely has a full mouth of baby teeth unless their eruption was particularly late.

Early Loss vs. Typical Loss

Some children lose their first tooth at age 3 or 4, while others don’t lose teeth until age 8 or 9. This variation is normal. Girls tend to lose teeth slightly earlier than boys on average, though the overlap is significant. Genetics are the biggest factor in when tooth loss begins. If you or your partner lost teeth early, your child probably will too.

Early tooth loss isn’t necessarily a problem. If a child loses a tooth at 3 or 4 years old and otherwise is developing normally, there’s likely nothing to worry about. Similarly, a child who doesn’t lose their first tooth until 8 or 9 is probably fine if the tooth is otherwise healthy.

Order of Tooth Loss: Which Teeth Fall Out First

Lower Front Teeth First

The first teeth to go are usually the lower front two teeth (central incisors). These start becoming loose between ages 5 and 7 for most children. In children with early tooth loss, these might loosen at 4 or even 3. In children with later loss, it might be 8 or 9.

Once the lower central incisors are gone, the upper central incisors follow closely. The child might lose the first lower incisor, then within weeks or months lose the other lower incisor and both upper incisors. This happens in most children, though some have different patterns.

Lateral Incisors Come Next

After the central incisors (front two teeth) are shed, the lateral incisors (the teeth on either side of the front two) become loose and fall out. This usually happens around age 6 to 8 for the lower laterals and age 7 to 9 for the upper laterals.

At this point, a child’s smile has changed noticeably. With the front four teeth gone, there’s quite a gap. Children sometimes feel self-conscious about this, though most embrace it as a sign they’re “growing up.” The gap is temporary and closes as permanent teeth erupt.

Canines and Premolars

Canine teeth (the pointed teeth on either side of the upper and lower front teeth) are typically lost between ages 9 and 12. Premolars (the teeth between canines and molars) come out around ages 10 to 13. By age 12, most children have lost all their baby teeth except possibly the last molars.

When Should Baby Teeth Fall Out: Molars

Molars are the last baby teeth to go. Lower molars are typically shed between ages 10 and 12. Upper molars are shed between ages 11 and 13. Some children keep one or two baby molars until age 13 or even 14, which is still within normal range.

The entire process from losing the first tooth to losing the last baby tooth spans about 6 to 8 years for most children, though the range can be 5 to 10 years depending on when tooth loss begins and how quickly it progresses.

What If Your Child’s Teeth Are Early or Late?

Early Tooth Loss in Children

A child losing their first tooth at 4 years old or even earlier isn’t necessarily a concern. Genetics are the primary factor, and some children are simply early losers. As long as the permanent tooth is coming in behind the baby tooth, the process is proceeding normally.

Early tooth loss becomes a concern only if permanent teeth aren’t developing or if there are other signs of a problem. If your child has lost multiple teeth but the permanent teeth underneath aren’t visible or are developing very slowly, mention this to your dentist. Most of the time, the permanent teeth are developing normally and will erupt on schedule.

Late Tooth Loss in Children

Is it normal for a 4 year old to lose a tooth? Typically, no. Most 4 year olds still have all their baby teeth. However, if a 4 year old has a loose tooth, it might be early, or it might indicate trauma or other issues. A 4 year old with a loose tooth should be seen by a dentist to rule out problems.

A child who hasn’t lost any teeth by age 9 is unusually late. At this point, a dental evaluation is worthwhile to understand why. Sometimes permanent teeth are developing late, sometimes teeth are impacted, or sometimes there’s a genetic reason for very late eruption. Your dentist can assess the situation with X-rays.

Genetics and Family Patterns

The biggest predictor of when your child will lose teeth is when you and your partner lost yours. If both parents were early losers, the child likely will be too. If both parents were late, same thing. Genetics influence the pace of tooth eruption and loss significantly.

If you’re unsure when you lost your teeth or don’t know your partner’s timeline, ask. This information helps put your child’s tooth loss in context. If your child is losing teeth at the same age you did, they’re probably right on track.

Permanent Teeth Coming in Behind Baby Teeth

Normal Eruption Patterns

In most cases, a permanent tooth begins erupting from behind the baby tooth before the baby tooth falls out. Parents sometimes see what appears to be a second row of teeth and worry. “Double teeth!” they say in alarm. This is usually just the normal process of permanent teeth coming in while baby teeth are still there.

Permanent teeth are larger than baby teeth, so they erupt in slightly different positions. A permanent front tooth often erupts on the inside (toward the tongue) of the baby tooth. Once the baby tooth falls out, the permanent tooth usually shifts forward into place over time. This self-correction happens in most cases.

When Baby Teeth Don’t Fall Out and Permanent Teeth Come In

What if your baby teeth don’t fall out? If a baby tooth stays stubbornly in place while the permanent tooth behind it is erupting, dental intervention might be needed. A dentist can extract the baby tooth to allow the permanent tooth to move into place properly.

Sometimes this happens because the baby tooth is being held in place by the gum or by a bone abnormality. Sometimes the baby tooth’s root never fully resorbed (dissolved) as it should have. A dentist can assess the situation and decide whether extraction is necessary or whether waiting is fine.

Impacted Teeth and Missing Teeth

Rarely, a permanent tooth doesn’t erupt on schedule or doesn’t erupt at all. This is called impaction or agenesis (if the tooth never developed). These situations warrant dental attention and might require orthodontic intervention. Your dentist can take X-rays to see what’s happening with the permanent tooth and advise on next steps.

Some people are born without certain permanent teeth. This is genetic and relatively uncommon. If a baby tooth has fallen out but the permanent tooth hasn’t erupted by age 14 or so, dental evaluation is important to determine what’s happening.

Managing Loose Teeth at Home

Should You Help Wiggle a Loose Tooth?

Loose baby teeth eventually fall out. You don’t need to do anything. A tooth that’s ready to come out will come out on its own. Parents sometimes worry about letting their child eat or whether they should intervene, but loose teeth don’t need help.

If your child enjoys wiggling the tooth, that’s fine. Wiggling might speed up the process slightly, but it’s not necessary. Some children wiggle their teeth constantly until they come out. Others ignore them. Both approaches work.

What to Do If a Tooth Falls Out

When the tooth does come out, let your child examine it if they want to. Clean it if it’s dirty. This is often a special moment for children. Some families save baby teeth in a special box or keepsake. Others put them under the pillow for the tooth fairy.

After a tooth falls out, keep the area clean. Let your child eat soft foods for a day or two if the gum is sore, though most children feel fine immediately. The gap closes gradually as the permanent tooth erupts, and gum healing happens quickly.

When to See a Dentist About a Loose Tooth

Most loose teeth don’t require dental attention. However, see a dentist if the tooth seems to be coming out of its normal spot at a weird angle, if there’s significant pain or swelling, or if an adult tooth hasn’t erupted several months after the baby tooth fell out. These situations warrant professional assessment.

Permanent Teeth and Ongoing Development

Timeline for Permanent Teeth Coming In

As baby teeth are shed, permanent teeth erupt to replace them. The timeline for permanent tooth eruption mirrors the timeline for baby tooth loss. The permanent central incisors come in around ages 6 to 8. Lateral incisors follow at ages 7 to 9. Canines, premolars, and molars continue erupting through the early teenage years.

By age 12, most children have lost all baby teeth and have most of their permanent teeth. However, permanent molars continue erupting into the late teens. The third molars (wisdom teeth) erupt around ages 17 to 21 in most people, though many don’t erupt at all and some erupt much later.

Do Kids Lose Their Molars?

Yes, baby molars are shed just like other baby teeth, though they’re the last to go. Baby molars are lost between ages 10 and 13 and replaced by permanent premolars and molars. The process is no different from losing any other baby tooth.

Average Age Kids Lose Teeth FAQs

When should baby teeth fall out?

The average age for losing the first tooth is 5 to 6 years old, though normal range extends from 4 to 8 years old. Some children lose teeth earlier or later and still be perfectly normal. By age 12, most children have lost all baby teeth. If your child’s timeline is very different from this, mention it to your dentist.

What if your baby teeth don’t fall out?

If a baby tooth doesn’t fall out after the permanent tooth behind it has started erupting, a dentist can extract it. Extraction allows the permanent tooth to move into place. Most baby teeth fall out on their own, but sometimes they need a little help.

Is it normal for a 13 year old losing teeth?

Most 13 year olds have already lost all their baby teeth. However, losing a few baby teeth at 13 is still within the normal range, especially for boys or very large children. The last baby teeth are often the molars, and these can linger until age 13 or occasionally later. If all or most baby teeth are still present at 13, dental evaluation is warranted.

What age does children teeth fall out completely?

The last baby teeth typically fall out between ages 11 and 13. By age 12, most children have shed all baby teeth. Some children lose the last tooth at 14, which is still within normal range. After all baby teeth are gone, the focus shifts to permanent teeth erupting and settling into place, which continues into the late teens.

Why do some kids lose teeth early and others late?

Genetics are the primary factor. Your child’s timeline probably matches yours. Girls tend to lose teeth slightly earlier than boys. Nutritional factors, overall health, and systemic conditions can also influence timing, but most variation is genetic and normal.

Sources

American Academy of Pediatric Dentistry (AAPD). “Primary Tooth Eruption and Exfoliation.” Comprehensive timeline for baby tooth loss and permanent tooth eruption with normal ranges.

American Dental Association (ADA). “Tooth Development and Eruption.” Information on when children lose teeth and when permanent teeth come in, including variation and what’s considered normal.

Mayo Clinic. “Children’s Dental Health.” Guidance on baby teeth loss, permanent tooth eruption, and when to seek dental care for concerns.

National Institute of Dental and Craniofacial Research. “Eruption of Permanent Teeth in U.S. Children.” Statistical data on average ages and ranges for tooth loss and eruption across populations.