Why do people have baby teeth and adult teeth?

By: Christina Nicholas, University of Illinois Chicago and David Avenetti, University of Illinois Chicago, The Conversation

Outlets: The Conversation

Published: November 10, 2025

Words: 1,382

Last Updated: 2 weeks ago

By Christina Nicholas, University of Illinois Chicago and David Avenetti, University of Illinois Chicago

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

Why do people have two sets of teeth? – Ivy D., age 11, Hyde Park, New York

Teeth help animals bite and chew food. Meat-eating carnivores tend to have sharp teeth to …

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