An ancient cracked tooth repaired with a filling made of beeswax may be the earliest known example of therapeutic dentistry, researchers say.
The tooth is 65 centuries old and was part of a man’s jaw found more than 100 years ago in Slovenia.
Definite evidence of ancient dentistry is rare. The oldest examples are 7,500- to 9,500-year-old molars found in Pakistan that had regularly shaped cavities with concentric ridges drilled into them. Other, more questionable finds include a 5,500-year-old artificial tooth from Egypt.
Scientists reported online Wednesday in the journal PLoS ONE that they found the filling as they analyzed a 6,500-year-old lower jaw recovered from a cave near Trieste, Italy. The jaw, which once belonged to a 24- to 30-year-old man, included a left canine tooth possessing a vertical crack in its hard enamel and softer dentin layers. The severe wear and tear seen on the tooth was probably due to activities besides eating, the researchers said — for instance, men of the time might have used their teeth to soften leather or help make tools, and the women bit down on threads to hold them while weaving.
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