When Do Kids Start Losing Teeth? FAQs
Losing baby teeth is a major milestone for children, but also for parents! As your child grows, their smile goes through many changes—some exciting, some surprising, and all completely normal. This FAQ guide helps you understand when kids start losing teeth, why it happens, and what to expect. We’ll break down everything you need to know about when baby teeth fall out, the order of teeth coming in, how many baby teeth you lose, and more.
What age do kids lose teeth?
Typical age range for when kids start losing teeth
Most children start losing their baby teeth between ages 5 and 7, though this can vary. Some kids lose their first tooth as early as age 4, while others may not begin until age 8.
The first teeth to loosen are usually the lower central incisors—the same teeth that typically came in first.
Why the age kids lose teeth can vary
Every child develops differently. Genetics, nutrition, and even early dental habits can influence what age kids lose teeth. As long as tooth loss occurs within a broad range, it’s usually nothing to worry about. Curious about your child’s development? You might want to plan a visit with Children’s Dentistry of Knoxville so our team can assess whether your child’s growth is on track.
When do baby teeth fall out?
The baby tooth timeline explained
Most children have a full set of 20 baby teeth by age 3. These teeth serve important functions: chewing, speaking, and holding space for adult teeth. On average, baby teeth fall out steadily from age 6 to 12.
Why do we have baby teeth?
Parents often ask, why do we have baby teeth if they’re just going to fall out? Baby teeth are essential because:
- A child’s jaw is too small for adult teeth at birth
- They act as placeholders for permanent teeth
- They support oral development and speech
This is why it’s so important to care for those baby teeth with preventative dentistry services.
How many baby teeth do you lose?
Do you lose all your baby teeth?
Yes! Children typically lose all 20 baby teeth as their adult teeth come in. So, if you’re wondering, “how many baby teeth do you lose?” the answer is all of them.
How many teeth do kids lose altogether?
While kids lose 20 teeth, they eventually grow 32 permanent teeth, including wisdom teeth. That means the mouth goes through many stages of change from early childhood to the teenage years.
What teeth do kids lose first?
Order of teeth coming in—and falling out
The order of teeth coming in as a baby usually matches the order of teeth kids lose later. Most children lose teeth in this sequence:
- Lower central incisors
- Upper central incisors
- Lateral incisors
- First molars
- Canines (cuspids)
- Second molars
Which baby teeth are lost last?
The second molars, also called “12-year molars,” usually fall out around ages 10–12. These are typically the last baby teeth to go.
When do adult teeth come in?
Timeline for permanent teeth
Once a baby tooth falls out, you can expect the adult tooth to come in within a few months, although timing varies. Most kids have a mix of baby and adult teeth from ages 6 to 12, a stage known as the mixed dentition phase.
Why some adult teeth take longer to erupt
Some reasons for permanent teeth delay include:
- Crowding
- Genetics
- Teeth erupting out of order
- Underlying dental issues (rare)
If an adult tooth is taking longer than expected, your dentist can take an X-ray to ensure it’s developing properly.
What age do molars come in?
First permanent molars (“6-year molars”)
The first adult molars usually come in around age 6, but sometimes as early as age 5 or as late as age 7. These molars erupt behind the existing baby teeth, not in place of a lost tooth.
Second permanent molars (“12-year molars”)
Second molars typically erupt around age 12 or 13. These help create the foundation for the adult bite.
What about wisdom teeth?
Wisdom teeth, or third molars, come in between ages 17–25—and sometimes not at all. Many people need them removed due to lack of space or impaction.
Why do kids lose teeth?
A natural part of growing up
Baby teeth loosen as permanent teeth develop underneath them. The roots of baby teeth dissolve naturally, causing the wiggly-tooth phase kids know so well.
The role of baby teeth in adult smiles
Even though they’re temporary, baby teeth protect:
- Spacing
- Jaw alignment
- Speech development
- Chewing ability
Keeping them healthy ensures that adult teeth have the best start possible.
What if my child hasn’t lost a tooth yet?
Is late tooth loss normal?
Absolutely. Some perfectly healthy kids don’t lose a tooth until age 8. As long as teeth are erupting normally and your dentist sees healthy development on X-rays, this is no cause for concern.
Signs you should see a dentist
Schedule an appointment with one of our dentists if:
- One side of the mouth loses teeth much earlier than the other
- A baby tooth remains firmly in place even after the adult tooth has started to emerge
- Teeth fall out very early (before age 4) or very late (after age 8)
If you notice any of these, reach out to our pediatric dental care team at Children’s Dentistry of Knoxville. We’re happy to help evaluate.
How to care for kids’ teeth during the tooth-loss stage
Daily dental care tips
Losing teeth doesn’t mean oral care is less important. In fact, it’s more important during this transition. Encourage your child to:
- Brush twice a day
- Floss around both baby and adult teeth
- Protect wiggly teeth from rough play
Should kids wiggle their loose teeth?
Gentle wiggling is fine with clean hands or their tongue. However, kids should avoid forcing a tooth out before it’s ready, as this can cause pain or bleeding.
Key takeaways about when kids lose teeth
- Kids typically start losing teeth between ages 5–7
- They lose all 20 baby teeth
- Adult teeth come in from ages 6–12
- Molars arrive at ages 6 and 12
- The sequence of tooth loss usually mirrors the order the teeth came in
- Variations in timing are normal
If you still want to learn more about when kids lose teeth or you have any concerns about your child’s dental development, the caring staff at Children’s Dentistry of Knoxville is ready to support you. Whether it’s your child’s first visit, preventative care, or monitoring adult tooth eruption, we’re here every step of the way! Contact us for more information.