How many teeth do kids have?

Children have 20 baby teeth, 10 on top and 10 on the bottom. They usually arrive between about 6 months and 3 years of age, and are replaced by adult teeth between roughly ages 6 and 12.

How many teeth do adults have?

A full adult set is 32 teeth, including four wisdom teeth. Many adults have 28 because their wisdom teeth were removed or never formed.

When do wisdom teeth come in?

Typically between about 17 and 21, though they can appear later, come in only partway, or never erupt at all. A dentist can see them on an x-ray years before they arrive.

What order do baby teeth fall out in?

Usually in the order they came in: the lower front teeth first, around age 6 to 7, then the upper front teeth, then the teeth beside them. The canines and baby molars are usually the last to go, between about 9 and 12.

Teeth by age · Birth to 22 · Baby and adult teeth · Free

Which teeth come in at what age?

Slide to an age and see which baby and adult teeth are typically in the mouth, which are on their way, and which are getting ready to fall out.

Tool — Teeth by ageAge7 yearsBirth6 years12 years22 years

Baby teeth · 20 typically in

Adult teeth · 0 typically in · 10 arriving

Typically arriving around now: upper right first molar (3), upper right central incisor (8), upper left central incisor (9), upper left first molar (14), lower left first molar (19), lower left lateral incisor (23), lower left central incisor (24), lower right central incisor (25), lower right lateral incisor (26), lower right first molar (30)
Baby teeth typically being lost around now: upper right primary lateral incisor (D), upper right primary central incisor (E), upper left primary central incisor (F), upper left primary lateral incisor (G), lower left primary lateral incisor (N), lower left primary central incisor (O), lower right primary central incisor (P), lower right primary lateral incisor (Q)

Typical ranges · Many healthy children run months earlier or later · Ask a dentist if a tooth is a year off

Table 1 — The usual order

Milestones most children hit

Around 6 to 10 months	First teeth: the two lower front teeth, then the two upper front teeth.
By about age 3	All 20 baby teeth are usually in.
Around age 6	The first adult molars arrive behind the baby teeth, and the lower front baby teeth begin to loosen.
Ages 6 to 12	A mix of baby and adult teeth. The front teeth change first, the canines and baby molars later.
Around age 12 to 13	The second adult molars arrive. Most children now have 28 adult teeth.
Late teens to early twenties	Wisdom teeth arrive, if there is room for them and if they formed at all.

How much variation is normal

Early, late, and when to ask

The ranges here are typical, and plenty of healthy children run several months ahead or behind. Teeth also tend to arrive in pairs, left and right, within a few months of each other.

Worth mentioning to a dentist: no teeth at all by about 18 months, a tooth that is a year or more outside its usual range, one side arriving long before the other, an adult tooth coming in behind a baby tooth that will not loosen, or a baby tooth lost early to decay or injury. A dentist can check with an x-ray whether the adult tooth is there and where it is heading.

Common questions

How many teeth do kids have?: Children have 20 baby teeth, 10 on top and 10 on the bottom. They usually arrive between about 6 months and 3 years of age, and are replaced by adult teeth between roughly ages 6 and 12.
How many teeth do adults have?: A full adult set is 32 teeth, including four wisdom teeth. Many adults have 28 because their wisdom teeth were removed or never formed.
When do wisdom teeth come in?: Typically between about 17 and 21, though they can appear later, come in only partway, or never erupt at all. A dentist can see them on an x-ray years before they arrive.
What order do baby teeth fall out in?: Usually in the order they came in: the lower front teeth first, around age 6 to 7, then the upper front teeth, then the teeth beside them. The canines and baby molars are usually the last to go, between about 9 and 12.

General information · Not dental advice

These are typical ranges, not deadlines. A dentist can tell you whether your child is on track. We always recommend seeing a dentist. Nothing on this site can examine your mouth or tell you what is wrong. If something hurts, looks wrong, or worries you, book an exam, and go sooner if it is getting worse.

Emergency? If you have trouble breathing or swallowing, swelling that is spreading toward your eye or neck, a fever with facial swelling, or bleeding that will not stop, call 911 or go to your nearest emergency room immediately. Full disclaimer

About this tool

This tool gives general, educational information only. It does not know your health history, has not examined you, and cannot diagnose anything or tell you what treatment you need. Use it to prepare for a conversation with your dentist, not to replace one.

Medical disclaimer

The information provided on Urgent Dental Helper is for general informational and educational purposes only. It is NOT intended to be a substitute for professional medical or dental advice, diagnosis, or treatment. Urgent Dental Helper is not a dental practice, and nothing here has examined your mouth. Always see a licensed dentist, physician, or other qualified health provider in person about any dental or medical condition. Never disregard professional advice or delay in seeking it because of something you have read or any result you received on this website.