Why do we lose baby teeth?
Tooth Swap Shop
Why do we lose baby teeth?
One day, you wiggle a tooth with your tongue and — wait, is it loose? A few weeks later, it falls out, leaving a gap where a solid tooth used to be. Why does this happen? Why do we grow teeth, lose them, then grow a whole new set?
When you're born, your jaw is tiny — about the size of a walnut. Baby teeth are small enough to fit that little jaw perfectly. You get twenty of them, just enough to chew soft foods while your body grows.
