❓ why
Why do baby teeth fall out and get replaced by adult teeth?
Human BodyBiology
Quick Answer
Baby teeth make room for a larger jaw and a bigger set of adult teeth as a child grows. The roots of baby teeth are gradually absorbed, letting them loosen and fall out.
The Full Story
Humans typically have 20 primary teeth, also called baby teeth, which are replaced by 32 permanent teeth. As children grow, their jaws enlarge and the permanent teeth develop underneath the primary ones. The roots of baby teeth are resorbed by the body, causing the teeth to loosen naturally. This process usually begins around age 6 and continues through the early teens. The sequence helps a growing child transition from a smaller to a larger bite.
Key Facts
1.Children usually have 20 baby teeth
2.Adults usually have 32 permanent teeth
3.Replacement often begins around age 6
YouTube Angle
Suggested video title for this topic:
"Why do we get a whole second set of teeth?"