The research has three points:
1. Researchers located a tooth which has plaque dating back almost 50,000 years
2. The plaque appears to contain poplar which has the active ingredient in aspirin, therefore acting as a painkiller for a painful tooth
3. They also appear to have been eating a natural antibiotic mould.
"Dental plaque traps microorganisms that lived in the mouth and pathogens found in the respiratory and gastrointestinal tract," she explained in a university news release.
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