Agnostic.com

11 7

Wisdom teeth are a “scar of human evolution”.
They’re not just pointless, though—they’re also problematic. About 800,000 to 200,000 years ago, early humans’ brains started growing at a rapid pace—so much so that they ballooned to three times their original size. When that happened, it changed the shape of the braincase (the back part of the skull) and its position relative to the dental arcade (rows of teeth). ⁠

The dental arcade shortened, and suddenly there was no longer enough room for third molars. And since the genes that determine the makeup of our teeth evolve separately from those that control brain development, humans were stuck dealing with the consequences of a crowded mouth, according to Live Science. ⁠

Click here for more facts about wisdom teeth 🦷⁠: [trib.al]

Ryo1 8 Oct 23
Share

Enjoy being online again!

Welcome to the community of good people who base their values on evidence and appreciate civil discourse - the social network you will enjoy.

Create your free account

11 comments

Feel free to reply to any comment by clicking the "Reply" button.

0

It's fascinating to learn about the evolution of wisdom teeth. Our growing brains caused changes in the shape and size of our skulls, leading to a crowded mouth and the emergence of problematic wisdom teeth. It's interesting how different genetic factors affect teeth and brain development separately.
If you ever find yourself in a pinch with your wisdom teeth, like experiencing pain or other issues, it's essential to seek professional help. Emergency dental services, such as those provided by Emergency Dental Beaverton, can come to the rescue. They offer 24-hour urgent dental care near you, ensuring you get the assistance you need promptly.

1

An interesting inditement of dentist malpractice!

Thanks. I enjoyed the knowledge

1

I lost my real upper left back molar as a child....my wisdom tooth came in & is still there doing a fine job. (The others were extracted).
Plus I can tell a lot about a new dentist if they do a double-take upon examining my mouth.

1

My dentist told me I was genetically superior because I only had 3.

1

I had all four extracted at the same time. Before I went under, I asked and the dentist said it would take a bit less than an hour. When I woke up, I saw that almost three hours had passed. The dentist seemed peeved that he had a harder job to get it done... Pass the opioids...

2

I find the name “wisdom” teeth somewhat ironic as the age when they normally erupt is in the late teens to early 20s. Looking back at my earlier version of me at that age, I was never smarter (so I thought) but wise? Ha! If they really were wisdom teeth they would erupt at about the time we need dentures! 😉

1

I've only had one grow in, and removed.

1

I never had mine grow in....

2

I never developed one of the four....neither did my kids. All the same one. Upper Right.

1

I wonder how this relates to our relation to Neanderthals.

From what I just gathered (since the whole area of hominid evolution is one which intrigues me):

Our lineages parted ways 400- to 500,000 years ago... but Neanderthal were very similar to Homo Sapiens, large brains, upright posture, tool use. They even evolved a gene for red hair (similar to ours, but evolved independently). But they had a larger jaw, with room for wisdom teeth and to spare.

Had their line carried on, the same evolutionary pressures that we underwent might have worked the same results. Less need for jaw strength and extra molars, compared to needing more room for that growing brain, might have made their wisdom teeth redundant as well.

@Paul4747 I always wonder about that history, especially wondering if a trait originated in Neanderthal ancestors. From family DNA testing, I’ve learned that many of us, if not most, do have some Neanderthal DNA. (One of my nieces and I have more Neanderthal DNA than about 85’% of humans…I always think this explains our unusually high libido.)

@MsKathleen Then maybe I'm in the Neanderthal club too. (Unintentional pun!!)

@Paul4747 Well…..we usually mean something else, when we say a man is a Neanderthal.

3

It could be our brains are shrinking now. Hold onto those teeth!

Write Comment
You can include a link to this post in your posts and comments by including the text q:629863
Agnostic does not evaluate or guarantee the accuracy of any content. Read full disclaimer.