How to use the baby teeth tracker
- Add your child. Use Add a child above the chart. A nickname is fine. The birth date is optional, but you need it to compare dates with the usual ages.
- Tap a tooth. The chart shows the mouth as if you're facing your child: upper teeth on top, and your child's right side on your left.
- Enter the dates. Fill in Came in on, Fell out on, or both, then Save dates. The Today buttons save typing on the big day.
- Check the timeline. Every date shows up in the timeline, newest first, with a note on how it compares with the usual range.
- Print the keepsake. Print keepsake chart prints one tidy page with the chart and every date, ready for a baby book.
Got more than one child? Add each one. Records are kept apart, so the twins' charts never get mixed up.
When do baby teeth come in and fall out?
Most children have 20 baby (primary) teeth. The ADA says they start to come in at about 6 months, and they're usually all in by about age 3. They then fall out over several years as the adult teeth push up underneath.
| Teeth (pair) | Usually come in (ADA) | Usually fall out (ADA) |
|---|---|---|
| Lower central incisors | 6–10 months | 6–7 years |
| Upper central incisors | 8–12 months | 6–7 years |
| Upper lateral incisors | 9–13 months | 7–8 years |
| Lower lateral incisors | 10–16 months | 7–8 years |
| Upper first molars | 13–19 months | 9–11 years |
| Lower first molars | 14–18 months | 9–11 years |
| Upper canines | 16–22 months | 10–12 years |
| Lower canines | 17–23 months | 9–12 years |
| Lower second molars | 23–31 months | 10–12 years |
| Upper second molars | 25–33 months | 10–12 years |
The American Academy of Pediatric Dentistry (AAPD) publishes a second chart, based on a classic 1933 study, with slightly different ranges. For example, it puts the lower front teeth at 5–8 months and the upper front teeth at 6–10 months. Use the Compare with switch to see your child's dates against either chart.
The usual order of losing teeth roughly follows the order they came in: front teeth first, back molars last. The Adult Teeth Predictor turns these ranges into a year-by-year timeline for your child.
Is my child's tooth early or late?
For each date you enter, the tracker says one of three things:
- Earlier than usual: your child was younger than the start of the usual range.
- Within the usual range: your child's age falls inside the range.
- Later than usual: your child was older than the end of the range.
These are descriptions, not diagnoses. The ranges show what's typical for most children, and the AAPD notes that many otherwise normal children don't follow the schedule exactly. A few months either side of a range is common. If something worries you, write down the dates from this tracker and bring them to your child's next dental visit. Real dates help the dentist much more than "around last spring."
Why bother keeping track?
- It's a keepsake. First tooth, first lost tooth, the gap-toothed school photo. Dates fade from memory fast.
- It helps at the dentist. The ADA explains that baby teeth hold the space for the adult teeth, help with chewing and speaking, and that losing them early to cavities can affect the adult teeth. Knowing when each tooth came and went gives your dentist a clearer picture.
- It sets up the Tooth Fairy. When you mark a tooth as lost, the tracker links to the Tooth Fairy Calculator, with the tooth filled in for a printable certificate.
Tips for the big days
- Note the date the same day. The Today buttons make it a five-second job, even from the bathroom sink.
- A tooth knocked out in a fall: that's different from a loose tooth falling out. Read the Knocked-Out Tooth guide and call your dentist.
- No teeth yet, or wondering what's next? The Teething Calculator shows which teeth usually come in at your baby's age.
How this tool works
- When you save a date, the tracker works out your child's exact age on that day from the birth date.
- It compares that age with the published range for that tooth. "Came in" dates use the eruption ranges in months. "Fell out" dates use the shedding ranges in years.
- Ranges are read in whole units, so "6–10 months" covers a baby from the day they turn 6 months until the day before they turn 11 months. "6–7 years" runs until the day before the 8th birthday.
- It checks the dates make sense: no dates in the future, nothing before the birth date, and a tooth can't fall out before it came in.
- The chart, timeline and keepsake are drawn from your saved dates.
Where your data goes: nowhere. Records are saved in this browser only, in My Smile, as soon as you press Save dates. Share links carry only the chart setting, never names or dates. Clearing your browser data deletes the records, so use My Smile's backup if they matter to you.
Limits: the ranges are averages from published charts. They can't tell you whether your own child's teeth are healthy; your child's dentist can.
Frequently asked questions
Which baby teeth fall out first?
How many baby teeth does a child lose?
My child's tooth came in later than the chart says. Is something wrong?
Can I track more than one child?
Where are the dates saved?
Sources
- American Dental Association (MouthHealthy). Primary Tooth Development (eruption chart). 2012. Accessed October 26, 2026.
- American Dental Association (MouthHealthy). Eruption Charts. Accessed October 26, 2026.
- American Dental Association (MouthHealthy). Baby Teeth. Accessed October 26, 2026.
- American Academy of Pediatric Dentistry. Dental Growth and Development (chronology of the human dentition). Accessed October 26, 2026.
Last reviewed by the Dental Health Time editorial team, against the sources above. How we review.