Most children lose their first baby tooth around age 6, though it can happen as early as 4 or as late as 7. The process then continues for about six more years, with the last baby teeth falling out between ages 10 and 12. If your child hasn’t lost a tooth by their seventh birthday, that’s still within the normal range.
Which Teeth Fall Out First
Baby teeth generally fall out in the same order they came in. The two bottom front teeth (the lower central incisors) are almost always first. The two upper front teeth follow shortly after, which is why so many first-grade school photos feature that classic gap-toothed grin.
Here’s the full timeline, based on American Dental Association guidelines:
- Central incisors (front teeth): 6 to 7 years
- Lateral incisors (next to front teeth): 7 to 8 years
- Canines (the pointed teeth): 9 to 12 years
- First molars: 9 to 11 years
- Second molars: 10 to 12 years
These ranges overlap because every child is different. Girls tend to lose teeth slightly earlier than boys, and children who got their baby teeth early often lose them early too. The pattern matters more than the exact timing. As long as teeth are loosening in roughly the expected sequence, things are on track.
Why Baby Teeth Fall Out
Baby teeth don’t just randomly get loose. When a permanent tooth is ready to come in, cells around its developing root release signaling molecules that gradually dissolve the root of the baby tooth above it. This process works much like the way your body constantly breaks down and rebuilds bone. Over weeks or months, the baby tooth’s root gets shorter and shorter until there’s almost nothing anchoring it in place. That’s when your child notices it wiggling.
Once the baby tooth falls out, the permanent tooth usually pushes through the gum within a few weeks to a couple of months. Some children feel mild soreness or pressure as the new tooth erupts, but many don’t notice much discomfort at all.
When Permanent Teeth Come In Behind Baby Teeth
Sometimes a permanent tooth doesn’t wait for the baby tooth to fall out. Instead, it erupts behind the baby tooth, creating a second row that looks a bit like shark teeth. This is surprisingly common, especially with the lower front teeth, and it usually isn’t a cause for alarm.
In most cases, the baby tooth will still loosen and fall out on its own. Encouraging your child to wiggle it gently can help speed things along. If the baby tooth hasn’t come out within about a month of the permanent tooth appearing, a dentist can evaluate whether a quick extraction would help. Once the baby tooth is gone, the tongue naturally pushes the permanent tooth forward into its correct position over time. In rare cases where the permanent tooth is significantly out of place, a dentist may suggest orthodontic evaluation later on.
Eruption Cysts and Other Bumps
Occasionally, a bluish or clear bump appears on your child’s gum right where a new tooth is about to break through. This is called an eruption cyst, a small fluid-filled pocket that forms over the incoming tooth. It can look alarming, but it’s typically painless and goes away on its own once the tooth pushes through.
Most dentists take a “wait and see” approach with these, checking in every couple of weeks. If a cyst lasts longer than a month, causes bleeding, or makes chewing uncomfortable, the dentist can make a small incision to help the tooth emerge. This is minor and resolves quickly.
What Happens If a Baby Tooth Is Lost Too Early
When a baby tooth falls out on its natural schedule, the permanent tooth is usually close behind. But if a baby tooth is knocked out in an accident or pulled because of severe decay well before the permanent tooth is ready, the surrounding teeth can drift into the empty space. That shifting can crowd out the permanent tooth and lead to alignment problems down the road.
To prevent this, dentists sometimes place a device called a space maintainer. It’s a small piece of metal or acrylic that holds the gap open until the permanent tooth is ready to come in. Space maintainers can be fixed (cemented onto neighboring teeth) or removable, depending on the situation. They’re painless to wear and can save a child from needing more extensive orthodontic work later. If your child loses a baby molar to decay or injury before age 9 or so, ask the dentist whether a space maintainer makes sense.
Early and Late Tooth Loss
Some children start losing teeth as early as age 4, while others don’t lose their first tooth until close to 8. Both ends of that spectrum can be perfectly normal. Children who got their first baby tooth at 4 months old, for instance, may start the process earlier than a child whose first tooth didn’t appear until 10 or 12 months.
A few situations are worth paying attention to. If your child loses a tooth before age 4 with no obvious injury, it could signal an underlying issue with the tooth’s root or gum health. On the other end, if no teeth have loosened by age 8, a dentist can take an X-ray to confirm that permanent teeth are developing normally beneath the gums. Sometimes permanent teeth are simply slow to form or are positioned at an angle that delays the resorption process. An X-ray clears up the mystery quickly.
Helping Your Child Through the Process
A loose tooth can be exciting or anxiety-inducing depending on the child. Let them wiggle it with their tongue or clean fingers, but discourage yanking at a tooth that isn’t ready. A tooth that wiggles only slightly still has root structure intact and will come out more comfortably if given time.
Once a tooth falls out, a little bleeding is normal. Having your child bite down gently on a piece of clean gauze or a damp washcloth for a few minutes usually stops it. The new permanent teeth coming in will look bigger and slightly more yellow than the baby teeth they replaced. That’s completely normal. Permanent teeth have a thicker layer of the harder tissue beneath the enamel, which gives them a warmer color compared to the bright white of baby teeth.
This is also a good time to reinforce brushing habits. Permanent teeth need to last a lifetime, and the molars that come in around ages 6 and 12 are especially cavity-prone because of their deep grooves. Many dentists recommend dental sealants on these teeth as a simple, painless layer of protection.