Parts of a Tooth: Lesson for Kids

Instructor: Diane Sieverson

Diane has taught all subjects at the elementary level, was the principal of a K-8 private school and has a master's degree in Measurement and Evaluation.

Teeth are an important part of your body, and there are different parts that make up a whole tooth. This lesson will teach you about the parts of a tooth, what teeth are made of and what each part does.

What Are the Different Parts of a Tooth?

You might not think much about your teeth as you bite into a juicy watermelon, hot, buttery corn on the cob, cheesy pizza or crunchy popcorn, but they are an important part of your body. They let you eat all the delicious food you love! They even make it possible to chew gum so you can blow big bubbles! But there is more to your teeth than meets the eye, and teeth have different parts and are made up of different things.

A tooth has two parts, which are the root and the crown.

When you think of a root, you probably think of the part of a plant that holds it into the ground. And that's exactly what the root of a tooth does, too. It sits below your gums and attaches the tooth to the bone in your jaw.

When you think of a crown, you might picture a king wearing one on top of their head. The crown of a tooth sits on top of the rest of the tooth, above your gums, and is the part you see when you smile or brush your teeth.

What Are Teeth Made Of?

Parts of a tooth
Parts of a tooth

Enamel is the white, hard outer coating of the crown. You scrub this part of the tooth to get it clean when you brush your teeth every day. Enamel is like a helmet for your teeth that protects them while you bite and chew all those hard, crunchy foods you love to eat. It's also the hardest material in your body!

Dentin is a substance that sits below the enamel and runs from the crown through the root. It is a yellowish color, makes up most of the tooth and is similar to bone. It holds up the enamel, like the frame of a house, and also holds some nerve strands. These nerves can make your tooth hurt, like an alarm system, if there is a problem such as a cavity.

The pulp is in the middle of the tooth below the dentin. It is soft, sensitive and runs from the crown down through the root of the tooth. It holds the blood vessels and most of the nerves in a tooth. Just like your body needs nutrition to be healthy, your teeth do, too. Nutrition gets to the tooth through the blood pumping into the pulp.

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