Neanderthals’ Dental Drilling Shows Early Dentistry

Neanderthal dentistry – A 59,000-year-old Siberian Neanderthal molar shows staged drilling to reach the pulp, pushing back dentistry evidence by ~45,000 years.

One of the most stubborn questions about ancient Neanderthals may have just met its sharpest answer: a tooth that appears to have been deliberately drilled to treat a painful cavity.

A 59. 000-year-old Neanderthal molar found in a Siberian cave bears clear evidence of purposeful intervention. including marks consistent with repeated stone-tool boring into the tooth’s interior.. Researchers say the procedure likely targeted a deep cavity associated with bacterial decay. and that it was performed in multiple stages down to the pulp.

The tooth in question is a lower second molar with a large, irregular concavity.. Rather than looking like a simple break from after death. the damage is described as a carefully shaped set of overlapping depressions that extend through the pulp chamber.. The pattern suggests the person using the tool understood where the cavity was and how to work toward it.

Scientists first considered simpler explanations.. The initial impression was that the tooth might have cracked before or after death. only to be challenged as closer examination raised questions about how the deformation occurred and whether it was intentional.. That shift led the team to scrutinize the surface with more specialized methods.

In-depth mark analyses, carried out by a researcher at the Russian Academy of Sciences, pointed toward human intervention.. Further study using advanced imaging then revealed additional features. including two cavities and scrapes that fit the idea of repeated use of a “toothpick”-like implement.. The imaging also suggested traces of rotation by pointed stone tools as they were worked directly into the cavity.

A key detail for researchers is how the cavity repair resembles attempts seen in much more recent humans.. The shape and finish of the drilled area appear to match what would be expected if someone were trying to access the pulp chamber and remove affected tissue.. Importantly. the tooth’s polished and rounded contours imply the individual continued to chew with that tooth after the procedure. which in turn suggests the treatment may have offered functional relief.

The team argues that this find pushes back the earliest known evidence of dentistry by roughly 45,000 years.. Previously. the oldest purposeful dental work linked to Homo sapiens in Italy dated to about 14. 000 years ago. and that case involved scratching rather than drilling.. Here, the combination of boring depth and staged access to the pulp is what makes the Siberian evidence stand out.

Beyond the mechanics of the tooth, the researchers frame the discovery as a window into Neanderthal thinking about disease.. The report says the evidence challenges assumptions about Neanderthal cognition by indicating they could reason about a biological problem—pain from decay—and act in a goal-directed way.. It was also described as a case where microscopic evidence supported the interpretation.

To test whether such marks could be produced with plausible tools. the researchers conducted laboratory experiments using replicated fine-pointed stone tools made from jasper-like material. along with three Homo sapiens molars—two prehistoric teeth and one modern tooth extracted from a researcher’s mouth.. Because Neanderthal teeth are rare and too old for experimental sampling, the team relied on these modern and prehistoric comparators.

Those experiments reportedly succeeded in creating similar holes within about 50 minutes. though they required precision to prevent the tooth from fracturing.. The researchers emphasize that the effort did not resemble a “trial-and-error” attempt; the successful reproduction of depth and stopping points suggests a level of skill rather than fumbling.

The implications for the person receiving treatment are stark.. The drilling would likely have been excruciating. especially since genetic evidence discussed in the report suggests Neanderthals may have had greater pain sensitivity than Homo sapiens.. Researchers propose possibilities ranging from exceptional stoicism to rapid execution of the procedure—perhaps both.

If the drilling and scraping reached the pulp as interpreted. the intervention would probably have caused nerve death. which can reduce pain.. The report describes the treatment as invasive, goal-directed, and functionally successful, supported by the apparent evidence that chewing continued afterward.

External assessment also points to credibility, though with cautions about what the find should be called.. A researcher at the University of Bologna said the results are convincing and align with a growing body of evidence suggesting Neanderthals were capable of more advanced cognitive and behavioral capacities than once assumed.

At the same time, that scholar cautioned against overstating the existence of “advanced dentistry” as a specialized craft.. The argument is that the severity of the pain may have driven an attempt to remove damaged areas by scraping. rather than demonstrating a refined tradition of dental care.. In that view. the evidence might be better described as “proto-dentistry. ” reflecting an early. functional approach rather than a fully developed practice.

Taken together. the Siberian tooth provides a rare and detailed record of how ancient people may have confronted illness using stone tools. and it reframes what “treatment” could have meant tens of thousands of years ago.. It is a small piece of evidence—one molar—that nonetheless forces a big shift in how researchers think about Neanderthal capability. care. and the lived experience of pain and repair.

Neanderthal dentistry Siberian molar tooth drilling ancient medicine stone tools paleohealth human evolution