What race has no wisdom teeth?

Why Some People Never Get Wisdom Teeth

It might come as a surprise, but not everyone develops wisdom teeth—and for some populations, it's nearly universal. While most people grow up expecting a trip to the oral surgeon, entire groups of people are born without these third molars altogether. One striking example? Indigenous Mexican peoples, who have a 100% rate of missing wisdom teeth. Contrast that with European and African populations, where the vast majority do develop them.

This genetic variation isn't random. Scientists have traced part of the explanation to a specific gene: PAX9. This gene plays a crucial role in tooth development, and certain mutations can result in the complete absence of wisdom teeth. Over generations, evolutionary pressures—like changes in diet and jaw size—may have favored individuals with smaller jaws and fewer molars. As our ancestors shifted from tough, raw foods to softer, cooked meals, the need for extra grinding teeth diminished.

So, if you’ve never had a wisdom tooth extraction, you might have ancient genetics to thank. The trait is more than a dental curiosity—it’s a visible sign of human evolution in action. Populations that have lived without wisdom teeth for generations offer a glimpse into how our bodies adapt over time.

Interestingly, this difference highlights that human evolution didn’t stop thousands of years ago—it’s still shaping us today, one missing molar at a time.