Were the Flintstones' teeth better than ours?

02/20/2013 | HealthDay News

Changes in diet and oral bacteria over the past 7,500 years have caused human oral health to decline, according to research published in Nature Genetics. The introduction of farming, followed by processed sugar and flour lowered the diversity of oral bacteria, allowing strains involved with caries to dominate, lead researcher Alan Cooper said. The research team looked at DNA in calcified dental plaque on 34 prehistoric human skeletons from northern Europe to analyze how oral flora has changed since the Stone Age.

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