Human Biology

Why Do We Have Baby Teeth?

Many animals are diphyodonts, meaning they grow two separate sets of teeth throughout their lives. This includes humans, and that "separate set of teeth" are otherwise known as baby teeth. What's their purpose? One obvious reason for growing little teeth is that our little mouths can't handle adult-sized chompers, but toddlers need teeth to chew food and develop their speech. Discover more reasons for baby teeth in the following videos.

Baby Teeth Actually Have A Purpose

Have you ever thought about how weird they are?

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Key Facts In This Video

  1. Humans are diphyodonts, or a species who grows two sets of teeth. 00:15

  2. By puberty, humans should have around 28 fully developed teeth. 01:25

  3. Polyphyodonts can grow more than two sets of teeth in their lifetime. 01:52

How Teething Affects Babies

If you're a parent, you're probably familiar the rough nights associated with teething babies.

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Could Humans Ever Regrow Teeth?

98% of Americans suffer from tooth decay, so this is very good news.

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