Many people think that but archeological evidence says the contrary. Caries only started showing up in humans 3000-4000 years ago when we started doing agriculture and eating cereals.<p>Before that we practically didn&#x27;t had caries (just like wild animals also don&#x27;t).<p>Throughout human history humans would have the full set of teeth in the vast majority of cases, until we started settling and switched from hunter-gatherer to agricultural society (which is a very recent time in human species development).