Neanderthal Performed World's First Dental Surgery 59000 Years Ago

Stone Age Dentistry Discovered in Siberian Cave

Imagine enduring dental surgery without anesthesia, performed by stone tools in a cold Siberian cave 59,000 years ago. A newly discovered Neanderthal molar from Chagyrskaya Cave reveals exactly this scenario, pushing back the earliest known evidence of dentistry by more than 40,000 years. This evidence points to the earliest known instance of dental cavity intervention in human evolutionary history, according to a study published Wednesday in the journal PLOS One.

Researchers say the molar preserves signs that someone intentionally drilled into a cavity using a stone tool while the Neanderthal was still alive. Scientists were intrigued when they spied scratches on the tooth around the hole, suggesting manipulation using a tool, with fine-pointed stone tools unearthed in the cave providing possible clues to what made the marks. The concavity on this tooth was intentionally created by a human hand, specifically by a Neanderthal, using a small pointed lithic tool, likely a perforator made of local jasper.

Wear patterns on the tooth show that the individual was able to keep using their tooth after the procedure, with post-operative wear polish on the cavity edges confirming the individual survived and used the tooth afterward. The patient not only survived this primitive root canal but continued eating normally—a testament to both the procedure's effectiveness and the Neanderthal's remarkable pain tolerance.

Scientific Recreation Proves Ancient Skill

Researchers recreated the procedure using modern human teeth and sharp jasper tools modeled after perforators discovered in the same archaeological layer at Chagyrskaya Cave, with the experimental grooves matching the fossil almost exactly. The team was able to reproduce what they observed in the Neanderthal tooth and remove the majority of the dental tissue for each tooth with manual drilling in less than an hour.

The mouth is "a difficult space to work in," requiring "good manual dexterity, patience, and a helper who can hold the head still." All this was performed without anaesthetic, though the archaeologists believe the procedure would have effectively alleviated toothache. Exposing the dental pulp and cleaning out the cavity's contents also would have deadened the nerves and blood vessels there, leading to pain relief.

One researcher noted: "What struck me, and continues to strike me, is what an incredibly strong-willed person this Neanderthal must have been. To me, this is a stunning example of how archaeological evidence can allow us not just to glimpse a single aspect of past people's lives, but to actually understand what these individuals were like – strong and resilient."

Rewriting Neanderthal Intelligence

The findings add to a growing body of evidence that Neanderthals — our closest extinct human relatives — were cognitively and psychologically more similar to modern humans than previously thought, rather than the simple-minded, brutish cavemen of earlier stereotypes. Such behavior indicates that Neanderthals could identify an infection and craft and select the right tools and techniques to alleviate the pain it caused — as well as endure a painful procedure.

This discovery tells us "that the emotional and conscious parts of the Neanderthal mind operated independently, just as they do in modern humans." Whoever performed the procedure seems to have understood that the decay inside the tooth was causing the pain and that removing the damaged tissue might help. The procedure required not just technical skill but also trust between individuals—someone had to remain still while another person drilled into their infected tooth with a stone tool.

This study adds to growing research indicating that Neanderthals routinely cared for each other, with mounting evidence suggesting "that Neanderthals treated their sick and weak no differently than modern humans did."

Legacy of Ancient Healthcare

By pushing back the date of intentional dentistry by roughly 45,000 years, this new finding "fundamentally reshapes our understanding of the evolution of human healthcare." Cavities were rare among Neanderthals, but the scientists believe the molar reveals an ability by these hominins tens of thousands of years ago to execute a precise dental procedure.

This discovery challenges us to reconsider what we think we know about prehistoric intelligence and medical knowledge. The Neanderthal who underwent this procedure represents more than just an ancient patient—they embody the earliest evidence of intentional medical intervention in human history. Their willingness to endure such pain for relief, and the skill of whoever performed the procedure, reveals a sophisticated understanding of cause, effect, and healing that predates modern humans' earliest known medical practices by tens of thousands of years.