Most children lose their first baby tooth around age 6, though anywhere from age 4 to age 7 is considered normal. Girls tend to lose their teeth slightly earlier than boys. The process usually starts with the lower front teeth, followed by the upper front teeth a few months later.
Why Baby Teeth Fall Out
Baby teeth don’t just loosen on their own. Beneath the gums, the permanent tooth is slowly pushing upward, and the body begins breaking down the root of the baby tooth to make room. Specialized cells called odontoclasts dissolve the root from the bottom up, eating away at the hard tissue bit by bit. At the same time, the soft tissue inside the tooth, including the nerve and the ligament holding it in place, is gradually eliminated.
As chewing and the pressure from the emerging permanent tooth increase, the ligament surrounding the baby tooth converts that mechanical stress into chemical signals that speed up the breakdown process. Eventually, so little root remains that the tooth becomes wiggly, hangs by a thread of gum tissue, and falls out. The whole process for a single tooth, from the first hint of looseness to the tooth actually coming out, typically takes a few weeks to a couple of months.
The Order Teeth Usually Fall Out
Children have 20 baby teeth, and they tend to fall out in roughly the same order they came in. Here’s the general timeline:
- Lower central incisors (bottom front teeth): ages 6 to 7
- Upper central incisors (top front teeth): ages 6 to 7
- Upper and lower lateral incisors (next to the front teeth): ages 7 to 8
- Lower canines (pointed teeth on the bottom): ages 9 to 12
- Upper canines: ages 10 to 12
- First and second baby molars: ages 9 to 12
Most children have lost all 20 baby teeth by age 12. The entire process spans about six years from start to finish, so there’s a long stretch where your child has a mix of baby teeth and permanent teeth in their mouth at the same time.
The Six-Year Molars Are Different
Around the same time your child loses their first front tooth, you may notice new molars appearing in the very back of their mouth. These are the first permanent molars, and they don’t replace any baby teeth. They grow into empty space behind the last baby molars. Because they arrive without a tooth falling out first, parents sometimes miss them entirely. These molars are important for chewing and help set the shape of the jaw, so keeping them clean from the start matters.
Why Some Children Lose Teeth Earlier
A small number of children lose a baby tooth as early as age 3 or 4. Sometimes this is simply on the early end of normal, especially for girls. But tooth loss before age 4 is more often caused by something other than the natural process. The most common reasons for premature loss include cavities that weaken the tooth to the point of falling out, trauma from a fall or sports injury, and gum infections that damage the tissue holding the tooth in place. Certain medical conditions that affect enamel development can also make teeth more fragile.
Losing a baby tooth too early can cause problems beyond the gap in your child’s smile. Baby teeth act as placeholders, guiding permanent teeth into the correct position. When one is lost prematurely, the surrounding teeth can shift into the empty space, potentially crowding the permanent tooth when it finally arrives. If your child loses a tooth well before age 5 from decay or injury, a dentist may recommend a space maintainer, a small device that holds the gap open until the permanent tooth is ready to come in.
Why Some Children Lose Teeth Later
If your child turns 7 and hasn’t lost a single tooth yet, that’s usually not a problem. Some children are simply on a later schedule. A dental X-ray can confirm that the permanent teeth are developing normally beneath the gums and just haven’t started pushing through yet. In most of these cases, the teeth eventually loosen and fall out on their own without any intervention.
Occasionally, delayed tooth loss has a specific cause. The permanent tooth may be growing in at an unusual angle and not putting pressure on the baby tooth’s root. In rarer cases, a permanent tooth may be missing entirely, which means the baby tooth has no reason to loosen. An X-ray is the simplest way to tell what’s going on, and it’s worth requesting one if your child still has all their baby teeth by age 8.
What to Do When a Tooth Gets Loose
Once a tooth starts wiggling, your child can gently work it back and forth with their tongue or clean fingers. There’s no need to rush it. Pulling a tooth before it’s ready can break the root and leave a fragment behind, or cause unnecessary pain and bleeding. A tooth that’s truly ready to come out will practically fall out on its own, sometimes during a meal or while brushing.
Some mild bleeding when a tooth comes out is normal. Having your child bite down on a piece of clean gauze or a damp washcloth for a few minutes usually stops it. The gap left behind may look large, but the permanent tooth will gradually fill it in as it erupts over the following weeks or months. Permanent teeth often look bigger and slightly more yellow than baby teeth, which is completely normal.