Interesting article from Medline
Ancient humans had healthier teeth than people do today, researchers say.
This decline in oral health over the past 7,500 years is the result of changes in oral bacteria due to human evolution and industrialization, the study authors said. These changes have led to chronic oral and other health problems, according to the report published Feb. 18 in Nature Genetics.
Similar information from Discover Magazine
…ancient hunter-gatherers actually had pretty good dental health, as evidenced by their healthy teeth and diverse bacterial populations. Things didn’t start going downhill until the Neolithic period, about 10,000 years ago.