Why aren’t top teeth the same sizes as our lower teeth?
In: 46
Your front teeth (incisors) work like scissors. They cut by shearing as they pass each other, not crush by being on top of each other like molars. The top ones are bigger to have a slightly larger radius for the bottoms to slide behind just a little.
Edit: This was explained to me by an othordontist trying to fix my underbite.
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