A ~59,000-year-old Neanderthal molar from a North Asian cave shows a hole drilled into the pulp cavity, with X-rays revealing severe decay. A jasper tool rotated by hand could replicate the hole in 35-50 minutes. The oldest known dental drilling, predating other examples by 40,000+ years.
Neanderthals performed dental drilling 59,000 years ago in North Asian cave

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Key facts
- Cave in North Asia contains over 70 Neanderthal fossils and 26 dental specimens
- A lower second molar dated to ~59,000 years ago shows a deep hole extending into the pulp cavity
- Microscopic X-ray imaging revealed mineralization changes indicating severe tooth decay
- Experiments on modern human teeth showed a hole of the same shape could be drilled manually using a jasper tool rotated between two fingers, taking 35-50 minutes
- First dental drilling demonstrated outside Homo sapiens and the oldest example of this behavior by more than 40,000 years
- Individual survived for some time after the procedure, as shown by further wear on the tooth
- The procedure is described by modern dentists as the beginnings of a root canal
Sources
Oldest known dental treatment found in 59000-year-old Neanderthal ...archaeologymag.com
Researchers studying a molar from Chagyrskaya Cave in Russia found signs of deliberate drilling inside a painful cavity, suggesting ...
Tooth from Siberian cave reveals Neanderthal dental surgery | Reutersreuters.com
About 59000 years ago, a Neanderthal suffered from an awful toothache caused by a deep cavity in one of the molars on the lower jaw.
Chagyrskaya - An individual buried in Russia in the Pleistocene eradnagenics.com
Lineage: The DNA evidence suggests that the Chagyrskaya Neanderthals are more closely related to European Neanderthals than to those from the nearby Denisova ...
Dietary evidence from Central Asian Neanderthals: A combined ...sciencedirect.com
New archaeological and genetic data suggest that in Chagyrskaya Cave, there is evidence of a second Neanderthal dispersal into the Altai, at about 60 ka BP.
Neanderthals may have drilled out a cavity 59,000 years agowkyufm.org
Several views of the molar tooth archeologists discovered in Chagyrskaya Cave. ... Cavities were rare among Neanderthals, but the scientists ...
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