Ciara"They also made their own stone drill or perforator (a sharp stone tool that would have been used to drill or punch holes in hides, bone, and other materials) and tested it on three human teeth.
Two of the teeth were museum specimens, whose age and context curators didn’t know, making them less useful for other kinds of research. But one, an upper left third molar with an untreated cavity, came straight from the mouth of one of the authors—for science!"
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