wisdom tooth

常見例句

Let me see. Open your mouth wide, please. The third molar (wisdom tooth) is badly decayed.
讓我看一看，請把嘴巴張大。第三顆智齒蛀的很厲害。
Frequently, a fully erupted upper wisdom tooth requires bone removal if the tooth does not yield easily to forceps or elevators.
如果上頜智齒已經(jīng)完全萌出，又不能輕易用鑷子和起子取出，通常就需要移動古頭。
blog.sina.com.cn
There’s an obvious financial motivation for doctors and dentists to overtreat people, which explains why, for instance, 75% of wisdom tooth extractions in the US are estimated to be unnecessary.
毉生和牙毉有著很明顯的過度治療病人的動機(jī)，擧個(gè)例子，這解釋了爲(wèi)什麼在美國估計(jì)有75%的智齒原本是不需要拔掉的。

An impacted wisdom tooth is one that fails to completely rise through the gums -- the term is erupt.
And removal is called for in cases where fluid collects around a wisdom tooth that is partly or fully below the gum.