Why Do Wisdom Teeth Suck?

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有一种痛,始于口腔,终于全身,让人吃不下饭,睡不着觉,苦不堪言。那就是——智齿痛,长智齿的时候疼起来那真是疼得要命。

长过智齿的朋友们一定深有体会,这是一种多么痛的领悟。因此大家都特别想知道,是不是把智齿拔掉,就可以彻底和疼痛说拜拜了呢?智齿到底能不能拔?

让我们一起看一下这篇科普文章吧!



Each year, five million Americans get their wisdom teeth removed, which costs about three billion dollars in total medical costs.

But for many, since leaving them in can cause serious problems like gum infection, tooth decay, and even tumors.

But wisdom teeth weren't always the unwelcome threat we see today.

Wisdom teeth have been around for millennia.

Our ancient ancestors used them the same way we use our other eight molars: to grind up food, which was especially handy before the advent of cooking around seven thousand years ago, back when our diet consisted of raw meat and plants that were fibrous and tough to chew.

But once we got our hands on softer cooked foods, our powerful jaws no longer needed to work as hard and shrank as a result.

But here's the problem: The genes that determine the size of our jaws are completely separate from the genes that determine how many teeth we grow.

So as our jaws shrank, we still kept all 32 teeth.

And it eventually got to the point where there wasn't enough space to fit all of the teeth.

But why did wisdom teeth specifically get the boot?

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