Many of us have suffered, at least once in our lives, from the pain caused by wisdom teeth. But there are also lucky people who do not have these teeth (four in number). How do you explain this difference between members of the same species?
The answer was provided, at least in part, by a team of American researchers from Princeton University, in a study presented at the annual meeting of the American Association for Advanced Science.
According to the Princeton hypothesis, about 300,000 to 400,000 years ago (the oldest fossils showing the lack of wisdom teeth date back then), a genetic mutation inhibited the appearance of this type of teeth. Specifically, the development of the cranium led to a narrowing of the mandible, which led to a technical problem. Basically, the mandible was no longer long enough to allow the development of the wisdom teeth. Most of the ones that still appeared led to infections and serious health problems – which is pretty much the same situation most people still experience today.
The wisdom tooth extraction Park Ridge experts have determined that the size of the human jaw has shrunk over the years due to the way food was prepared and consumed. Food has become easier to ingest due to cutting, slicing, baking or steaming technologies used in its preparation. This is the reason why wisdom teeth do not find their place anymore among the other teeth.
source https://www.oralsurgery-hicd.com/blog/does-everyone-have-wisdom-teeth/
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