Neanderthals had primitive dental care
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- Published: Wednesday, 05 July 2017 07:46
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Grooves have been found on 130,000-year-old Neanderthal teeth that appear to indicate the use of toothpicks, and impacted or rotated teeth got extra attention. Research in the Bulletin of the International Association for Paleodontology by David Frayer and Davorka Radovcic of four Neanderthal teeth showed signs of grooves consistent with the use of toothpicks, along with occlusal wear.
A cave in Krapina, Croatia, has made important contributions to our understanding of Neanderthals since bones and teeth were discovered there between 1899 and 1905. Recent re-examination of items extracted from the cave by Professor David Frayer of the University of Kansas and Dr Davorka Radov?i? of the Croatian Natural History Museum has revealed much that was missed by previous generations of anthropologists.
Frayer and Radov?i? studied four Neanderthal teeth under a microscope, picking up signs of grooves consistent with the use of toothpicks, along with what dentists call occlusal wear, the loss of material from teeth rubbing against each other. The pair report that previous studies on the same teeth identified where in the mouth they came from. All four had toothpick grooves, but these were much deeper on an M3 molar and premolar. Those teeth also showed signs of abnormality, with the premolar rotated and the M3 partially impacted.
"The scratches indicate this individual was pushing something into his or her mouth to get at that twisted premolar," Frayer said in a statement. Sadly, Frayer doesn't know what Neanderthals used for toothpicks, although he suggests bits of bone or stems of strong grass as possibilities. "It's maybe not surprising that a Neanderthal did this, but as far as I know, there's no specimen that combines all of this together into a pattern that would indicate he or she was trying to presumably self-treat this eruption problem," he added.
Image by David Frayer/University of Kansas
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