Chris Rafoth, DDS@cascadiadentistResearchers recently identified nicotine in ancient dental plaque for the first time. The fossilized tartar may hold more clues to human history: https://sciencedaily.com/releases/2018/02/180227111636.htm…sciencedaily.comNicotine extracted from ancient dental plaque for the first timeA team of scientists has shown for the first time that nicotine residue can be extracted from dental plaque on the teeth of ancient tobacco users. Their research provides a new method for determining...4:32 PM · Apr 9, 2018·Facebook
