How Many Teeth Do Adults Have?

Something that I get asked all the time is “How many teeth should adults have?”

Many kids can tell me straight away how many teeth are in their mouth (and how wobbly they are!) – but the average adult seems to not be sure.

The total number of teeth adult humans gave  comes up surprisingly often at trivia nights too!

Frequently asked teeth number questions about adult teeth

Q: How Many Teeth does an adult have?

A: The average adult human will have 32 teeth total. This includes four wisdom teeth (“third molars”).

An average adult will have 16 teeth on top, and 16 teeth on the bottom.

adult teeth chart

Adult teeth chart showing all 32 adult teeth and the most common ages for tooth eruption. 16 adult top teeth, 16 adult lower teeth.

Q: I only have 28 teeth?

A: A lot of patients get worried as they only count 28 teeth in their mouth. It likely means you don’t have wisdom teeth (yet) or don’t have wisdom teeth at all! The wisdom teeth are the most commonly missing teeth in the mouth.

Q: I have more than 32 teeth?

A: Some people are born with more than 32 teeth! Usually the extra teeth are wisdom teeth – or bonus small teeth. They can occur anywhere but sometimes closer to the front.

Most commonly the wisdom teeth, premolars, and lateral incisors can be missing. A few people are born with more than 32 teeth (extra teeth) but this is rare.

Q: What are the different adult teeth?

A: The average adult will have 8 incisors, 4 canines, 8 premolars, and 12 molars (4 of which are wisdom teeth). Typically an adult will have all of their teeth by the end of their teenage years.

The teeth are evenly split between upper and lower, and evenly split left to right.

The simple answer: 32 teeth total (28 excluding wisdom teeth).

adult teethh diagram

Adult teeth chart showing the different types of teeth adult teeth.

Q: How many teeth do kids have?

A: Kids have 20 primary (baby teeth). It can get confusing though as new adult teeth can grow in as early as 5pm.

Q: How many teeth do you lose?

A: Humans only lose the baby teeth. There are twenty baby teeth – so in total kids will lose 20 teeth in total.

Q: A teenager has how many teeth?

A: Teenagers aged 13-17 are likely to have twenty-eight teeth. Some teens develop their final back teeth late – and could have fewer.

Some teens also get their wisdom teeth early and can have 30, or the total 32.

Q: How many teeth are in a full set of dentures?

A: Dentures don’t need to follow the natural number of teeth to look and feel great. Typically dentures will have 28 or 32 teeth if they are a full set (14-16 each for the upper and lower dentures).

Q: How many before wisdom teeth?

A: Counting from the front – the wisdom tooth is the eighth tooth from the front and centre. There are three large molars you should be able to feel at the back of the mouth if the wisdom teeth are present.

Wisdom teeth come in many sizes but usually feel like a smaller version of the big molar once fully through.

Q: How many teeth can be removed at once?

A: If you really need an extraction, the answer is typically unlimited. When necessary, for almost all patients, a dentist can remove as many teeth as needed at once.

Sometimes all the teeth are removed at once- this is called a dental clearance.

Q: How many teeth are on the bottom row?

A: Sixteen in total (including wisdom teeth) teeth on the bottom jaw for adults. (10 for kids).

Q: How many teeth are there excluding wisdom?

A: If all teeth are present except the wisdom teeth – we have 28 adult teeth.

Q: How many eye teeth do we have?

A: “Eye teeth” is another name for canine teeth. Humans have four permanent canine teeth, one in each corner of the mouth.

We do have four baby canine teeth as well – but these are lost typically by the time a kid becomes a teenagers.

Q: How many teeth do dogs have?

A: People often come to this page or website looking for info about how many teeth dogs have. I’m a human dentist- but I found this website that says that grown up dogs have 42 teeth! That’s 10 more than humans.

That is however less than the sixty teeth than the average T-Rex has!

Q: How Many Teeth Do Sharks Have?

A: Depending on the species of shark – the number changes. Sharks reportedly have around 50-300 teeth at any one time. They however lose their teeth very rapidly over the course of their life. Some sharks end up having over 50,000 teeth in the course of their life! (Shark Website Source)

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