Bodies decay because bacteria eat the flesh. Bones (including teeth) are not edible to bacteria.
However, when *you* eat food, you coat your teeth in edible sugars and other foods. The bacteria then eat these foods and multiply and they excrete acid as they do. That acid is what rots your teeth.
So the only reason teeth decay over your lifetime is because you’re coating them in food bacteria can eat.
That’s why it’s so important to preventing tooth decay to brush that leftover food off.
When we transitioned from hunter/gatherer to agri based civilizations, we began the decline and destruction of the human race. Almost all modern day issues such as cancer, diabetes and tooth decay sprang from agri-based societies.
Carbohydrates breakdown into sugars. Sugars promote tooth decay.
Did you know that most every hunter-gatherer skeleton found has a full set of teeth?
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