“Progressive tooth wear triggers bone remodelling processes that substantially modify the shape of the jaw during an individual’s lifetime. These effects are typically underestimated when attributing fossil hominid jaws to different species,” she told BBC News.
“The individual who was using a toothpick was young, as his or her teeth were not worn down. We also discovered a damaged area between the tooth area and the gum. There was a small cylinder-shaped lesion – in this area, if you place a toothpick it goes through.”
Story: Melissa Hogenboom, BBC News | Photo: Georgian National Museum