Did_Early_Humans_Use_Toothpicks_

Did Early Humans Use Toothpicks' Did early humans use toothpicks' A U.S. scientist may have settled a conundrum that could have widespread implications about the customs, diet and oral health of early humans -- did they use toothpicks' Curved grooves on the roots of teeth from ancient hominids suggest they were indeed concerned about dental hygiene and used implements to pick their teeth. But critics of the hypothesis have pointed out that modern humans who regularly use toothpicks do not have similar grooves. Leslea Hlusko, a palaeontologist at the University of Illinois at Urbana-Champaign, believes grass stalks were used as toothpicks by early humans and made the distinctive dental grooves. toothpicks, teeth, grooves, humans, grass, early, scientist, dental, tooth, seen, said, new, magazine, made, human, hlusko, ancient, about, yet, years, wood, widespread, wednesday, urbana-champaign, unlike, university, suggest, stalks, similar, silica, settled, scanning, roots, regularly, recorded, qualify