Scientists Remove Ancient Plaque from 6000-Year-Old Teeth

2/28/2018 - Professor of Anthropology Jelmer Eerkens in the International Business Times.

It is easy enough to recognise a smoker or someone who chews tobacco... it shows primarily in the stains on their teeth. Keeping this in mind, a research team extracted nicotine from ancient dental plaque in the hopes of understanding the history of tobacco consumption.

For the first time, scientists were able to extract the nicotine residue from plaque of teeth belonging to eight individuals who were buried between 6,000 and 300 years ago.

Read the full story in the International Business Times.