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The Earliest Known Dental TreatmentNeanderthals used stone drills to treat cavities almost 60,000 years ago in what is the earliest known evidence of dental treatment. This groundbreaking discovery challenges previous assumptions about Neanderthal capabilities and reveals their sophisticated approach to medical care.The Discovery in SiberiaThe single molar, unearthed in a cave in southern Siberia's Chagyrskaya site, features a deep hole that appears to have been created using a sharp, thin stone tool during the lifetime of the tooth's owner. The tooth, dated to be 59,000 years old, was found alongside the remains of Neanderthals and thousands of stone tools that have been excavated at the site.Scientific Evidence of Ancient DentistryThe lower molar features a deep hole in the centre of the tooth extending into the pulp cavity. Microscopic X-ray imaging revealed changes in mineralization that indicated severe tooth decay. Researchers conducted experiments on three modern human teeth to demonstrate that a hole of the same shape and patterns of microscopic grooves could be created by manually rotating a narrow, elongated tool made from local jasper between two fingers. Penetrating the dentin using this approach took between 35 and 50 minutes of continuous work.Expert Analysis of the ProcedureDr. Kseniya Kolobova, an archaeologist at the Siberian branch of the Russian Academy of Sciences, noted that this discovery "powerfully reinforces the now well-supported view that Neanderthals were not the brutish, inferior cousins of outdated stereotypes but a sophisticated human population with complex cognitive and cultural capacities."A dental professor who reviewed images of the tooth rated the Neanderthal's work as "a decent job." Justin Durham, a professor of orofacial pain at Newcastle University and the British Dental Association's chief scientific adviser, stated: "If I was marking this for a dental student, I wouldn't give it an A, but given the circumstances it's pretty impressive."Implications for Understanding Neanderthal CapabilitiesThis discovery represents the first time dental drilling has been demonstrated outside of Homo sapiens, and it is the oldest example of such behavior by more than 40,000 years. The smoothed edges of the drilled cavity and wear patterns inside it suggest the individual survived and continued to chew with the tooth for some time after the procedure.Dr. Lydia Zotkina, an archaeologist at the Russian Academy of Sciences and co-author, emphasized the remarkable strength of will required: "What struck me, and continues to strike me, is what an incredibly strong-willed person this Neanderthal must have been. They must have surely understood that although the pain of the procedure was greater than the pain of the inflammation, it was only temporary and had to be endured."This finding adds to previous evidence of Neanderthals caring for the sick and vulnerable group members, including an adult man with a withered arm and deformities in both legs, and a child with Down's syndrome who survived until at least the age of six. The latest discovery reveals not only compassion, but an impressive level of self-control by the patient and advanced technical skills by the practitioner.