A group of Italian scientist has published a report in the journal Scientific Reports that shows evidence of an operation to relieve a dental cavity was performed 14,000 years ago.
The study was carried out by scientists from the Italian universities of Bologna and Ferrara, who analyzed a dental cavity found on a 14,000-year-old skeleton at Riparo Villabruna, in the Venetian Dolomites, a mountain range in northeastern Italy.
Up until now, the oldest existing evidence of paleo dentistry dated such operations between 9,000 and 7,000 years ago. Paleo Dentistry concerns the low-tech interventions that our ancestors performed on themselves thousands of years ago to maintain dental hygiene.
Marco Peresani, from the University of Ferrara, said that the discovery showed the “creative and technological ability that was present in the Stone Age.” The hole on the Villabruna man’s third molar revealed that the tooth was cleaned using a flint microlith, a small, sharp stone tool. The microlith was used to pick away infected tissue from inside the tooth, which is an exciting discovery, according to the coordinator of the research, Stefano Benazzi, from the University of Bologna.
“The discovery shows that the man from the end of the Paleolithic period (the early phase of the Stone Age) was aware of the damaging nature of an infected cavity and of the need to intervene with microlithic tools to remove the infection,” he said.
It is the earliest known example of dentistry and suggests that dentistry evolved from the much older and more widespread practice of tooth picking, in which a twig or bone was used to remove food matter from between the teeth to maintain oral hygiene.