Medical Conditions

Baby Teeth Not Falling Out

Editorially reviewed | Sources: AAPD, AAP, Mayo Clinic|Updated June 2026

The short answer

Baby teeth typically begin falling out around age 6, starting with the lower central incisors, but there is a wide normal range. Some children lose their first tooth as early as age 4 or as late as age 8. Delayed loss of baby teeth can be caused by a late pattern of tooth development, missing permanent teeth underneath, or crowding. If a permanent tooth erupts behind a baby tooth that has not fallen out (sometimes called shark teeth), the baby tooth usually loosens and falls out on its own within weeks.

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By Age

What to expect by age

0-3 months

This concern is not applicable at this age. Baby teeth are just beginning to erupt and will remain in place for years. The full set of 20 primary teeth usually comes in by age 2.5 to 3 years.

3-6 months

Baby teeth are erupting during this period. All 20 primary teeth will serve important functions for chewing, speech development, and holding space for permanent teeth. They are not expected to begin falling out until approximately age 6.

6-12 months

The primary teeth are still actively erupting. Parents should focus on oral hygiene and dental visits. The permanent teeth are developing within the jaw below the baby teeth and will not begin pushing them out for several more years.

12 months+

All baby teeth should be in by age 3. The first baby teeth typically fall out around age 6, though the range of normal extends from about age 4 to 8 for the first lost tooth. If baby teeth have not begun to loosen by age 8, a dental evaluation with X-rays can check whether permanent teeth are developing normally underneath. Some children have congenitally missing permanent teeth, which means the baby tooth above that space may be retained indefinitely.

What Should You Do?

When to take action

Probably normal when...
  • Your child has not lost any baby teeth yet but is under age 7
  • Baby teeth are falling out in a different order than expected
  • A permanent tooth is coming in behind a still-present baby tooth (shark teeth) and the baby tooth is starting to get loose
  • Your child is a late bloomer developmentally and also a late teether, as these patterns often correlate
Mention at your next visit when...
  • Your child is 8 years old and has not lost any baby teeth yet
  • A permanent tooth has erupted behind a baby tooth that shows no sign of loosening after several weeks
  • Baby teeth were lost very early (before age 4) due to decay or trauma, and you want to ensure the permanent teeth will come in correctly
Act now when...
  • A baby tooth was knocked out or is severely damaged from trauma and needs immediate dental evaluation to protect the permanent tooth underneath
  • Your child has significant pain, swelling, or infection around a retained baby tooth

Sources

Trust your instincts. If something feels wrong, reach out to your pediatrician.

Worrying about your baby means you care. That is a good thing.

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How to Advocate for Your Child's Needs

You know your child better than anyone, and your observations matter. If you feel something is not right with your child's development or health, you have every right to ask questions, request evaluations, and seek second opinions. Advocating for your child is not being difficult - it is being a good parent.

Air Quality and Baby Health

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Are Allergies Linked to Neurodivergence in Children?

Research has found statistical associations between atopic conditions (eczema, food allergies, asthma) and certain neurodevelopmental differences such as ADHD and autism spectrum disorder. However, having allergies does not mean your child will be neurodivergent, and most children with allergies develop typically. These conditions may share some underlying immune and genetic pathways, but one does not cause the other.