Earliest tooth-fillings discovered in 13,000-year-old skeleton – Scientists have discovered 13,000- year-old teeth with traces of a tar-like substance at an ice age site in Italy, which is the oldest known example of tooth-filling.

source http://kianorshahmohammadi.com/post/159761150165

From http://dentaleconomicsus.blogspot.com/2017/04/earliest-tooth-fillings-discovered-in.html

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