It’s generally accepted by archeologists that before agriculture, humans had near-zero incidence of tooth decay.
However, recent research has revealed a pre-agricultural hunter-gatherer society with high starch consumption had plenty of rotten teeth.
This does two things - it makes the “tooth argument” for low- or zero-carb diets even more compelling, and it more clearly delineates what agriculture did* that caused such a huge increase in dental caries. Agriculture provides lots of carbs that stick well to your teeth.
*I really want to use the idiom “brought to the table” here.
