• vonxylofon@lemmy.world
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      2 months ago

      My teeth emphatically didn’t look like that at 21. More like someone used a shotgun to implant them to my mouth. I could be from Britain for all I care.

      • mojofrododojo@lemmy.world
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        2 months ago

        ironic that that meme is 70s-80s dated. most brits get far better dental care than the average US citizen, where our health insurance stops before it covers our goddamned mouth bones.

        • Dyskolos@lemmy.zip
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          2 months ago

          Isn’t basically everyone getting better <insert anything a civilized nation offers> than the US? Except having a great military ofc.

  • Zorsith@lemmy.blahaj.zone
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    2 months ago

    Survivorship bias? Bodies that are in the right condition dry out and pull the teeth deeper set into jaw bones as part of decomposition, whereas otherwise the skeleton would not be intact?

    • acosmichippo@lemmy.world
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      2 months ago

      https://en.wikipedia.org/wiki/Human_jaw_shrinkage

      The main contributing factor to the recent increase in malocclusion is widely considered to be due to a sharp reduction in chewing stress, especially during critical periods of craniofacial growth.[10][1] Experiments done on non-human subjects have shown that induced nasal blockages and/or dietary changes earlier in life lead to maladaptive morphological change in their jaws, intended to simulate what we are observing globally in human children.[4] Significant craniofacial changes due to diet have even been experimentally shown in pigs during development; researchers fed groups either a hard-consistency diet or a soft-consistency diet, for eight months in total.[11] Drastic differences in jaw and facial musculature, facial structure, and tooth-crowding were observed; researchers directly related the findings to what we are observing more in human populations.[11]

      so too much damn baby food?

      • Caesium@lemmy.world
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        2 months ago

        more like eating more processed food. and I mean like ‘gone through a cooking process’ kind of way. We do a lot more now than just burn our meat and eat veggies raw to get nutrients. we simply just don’t need to work our jaws so hard to get what we need

        if only my wisdom teeth got the memo :+:

        • boogetyboo@aussie.zone
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          2 months ago

          Oh mine got the memo. They lay peacefully, horizontally in my jaw, like little Saddam Husseins until they decided they wanted to visit other parts of my jaw and make friends along the way.

      • ChapulinColorado@lemmy.world
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        2 months ago

        I recall also reading about people in Australia and some other places with diets consisting of harder food for developing babies/toodlers having better jaw/teeth ratios and straighter teeth despite no regular access to a dentist, which kind of corroborates the findings.

      • AwkwardLookMonkeyPuppet@lemmy.world
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        2 months ago

        Should we be giving our toddlers bones to chew on?

        For real though, what about people who have gaps in their teeth? Did they have too much hard food?

          • MotoAsh@lemmy.world
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            2 months ago

            Average age is not average for those that reached adulthood. Most adults still lived to decent ages unless you select for very dire situations, like the Black Plague, or specific outbreaks of violence, etc.

            • abbadon420@lemm.ee
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              2 months ago

              That is true, but tooth get worse when you grow older. So to die younger means you’ll leave a nicer skull for archaeologists to find. The number 35 was arbitrarily chosen, but I now think your fact was slumbering in my mind when I chose that number.

              • MotoAsh@lemmy.world
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                2 months ago

                But… teeth don’t change arrangement as you age. Straight teeth are straight teeth unless rare complications happen like you have a lot of wisdom teeth and they shove the other teeth out of alignment.

    • brillotti@lemmy.world
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      2 months ago

      Our food is way softer so we don’t chew enough to maximise the growth of our maxillae and jaws.

        • theneverfox@pawb.social
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          2 months ago

          I eat the joints of bones - further up they tend to splinter and taste more chalky, but the joints are delicious and satisfying once you get past the ick factor. I thought even the cartilage was gross as a kid, but at some point instincts kicked in and my body told me it was a great idea. I knew marrow was nutritious and some people ate it, but I still don’t find it that appealing - joint bones are one of the most satisfying things ever though, I highly recommend gnawing on the end of a chicken wing

          Just because of your comment, I grabbed some tree bark to try… Cinnamon sticks. And holy shit, I just wanted to try it out, but I couldn’t stop. It just splinters at first, but once you start grinding the flavor kicks in and it just melts - 10/10, it’d be easy to eat enough to make yourself sick, but I’m going to be trying this again

          And FWIW, I’ve never had a cavity. I brush my teeth every morning but otherwise only if I feel I need to. I slightly cracked a tooth once, but my dentist was great and told me to use fluoride toothpaste and hold off on a crown - it’s been a decade and it hasn’t bothered me in years

          Trust your body. Yes, gnaw on bones and tree bark - not all of it, your body knows what is edible and what isn’t. If your instincts say “gnaw on this”, and it’s not made of plastic or metal, give it a try… If you take it slowly, what’s the worst that can happen? Probably a tummy ache

    • lemmus@lemmy.world
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      2 months ago

      We eat soft, processed foods now. We used to graze and chew constantly, which helps the jaw grow properly.

    • cannedtuna@lemmy.world
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      2 months ago

      I think I’d read before that it was because most of our foods now are soft foods so our teeth/jaws are not as strong.

    • Mango@lemmy.world
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      2 months ago

      Everyone who’s replied to you so far are wrong and speculating. The real issue is actually lack of nutrition and exercise for the mouth. We’re not growing our jaws out quite right while our teeth are coming in.

        • Mango@lemmy.world
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          2 months ago

          I’ll admit I don’t have a citation. I just remember it from a video about how this African dude had magnificent teeth because of the environment he grew up in.

          Edit: Oh nice, you found a wiki page which validates my thing!

    • ZoomeristLeninist [they/them, she/her]@hexbear.net
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      2 months ago

      im p sure it has to do with stuff being easier to eat. we dont have to work with our jaw to tear or crush difficult foods since everything is processed or we have tools to make it easy. our jaws are underused, so they develop to be smaller than theyre supposed to be, and our teeth get crowded

    • DaddleDew@lemmy.world
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      2 months ago

      Before we cut our food in perfectly sized bites with utensils our ancestors used to do it by biting into large pieces of food with their front teeth. That would wear them down evenly to form a nice flat bite.

      I wouldn’t be surprised if that’s the skeleton of someone who died way younger than we think as well.

    • Belly_Beanis [he/him]@hexbear.net
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      2 months ago

      Something else that affects our teeth (though I’m not sure if it affects growth) is sugar consumption. Our ancestors had very little access to sugar or even spices. They ate things like meat and veggies plain. Back in prehistoric times, this meant they wouldn’t have to brush their teeth, since the bacteria in their mouths wouldn’t have produced plaque.

      That’s why a lot of human remains of 80-year-olds from 20,000 BC have perfect teeth or only a few missing after those teeth got knocked out by getting hit in the face. If you’re ever stranded on a deserted island, you should avoid eating all those coconuts and bananas with every meal.

  • UraniumBlazer@lemm.ee
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    2 months ago

    My dentist said that it’s because we don’t chew much. We just eat a lot of soft stuff which somehow negativity affects teeth such that they don’t grow properly.

    • mihor@lemmy.ml
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      2 months ago

      Could be, there’s a similar remedy to wisdom teeth growing sideways. Apparently the body needs some sort of a signal for direction, so if you chew on a stick (e.g. a pencil) for 10-15 minutes each day, they should reallign themselves.

      • elucubra@sopuli.xyz
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        2 months ago

        You forgot the /s at the end of “fix your teeth by chewing on a pencil for 15 minutes a day”, right?

    • Ð Greıt Þu̇mpkin@lemm.ee
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      2 months ago

      Kinda? Humans consume a lot more sugar than they did 10,000 years ago, in addition to other foodstuff that are terrible for your teeth

      • sus@programming.dev
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        2 months ago

        The one I was thinking of is the (hypothesized) reduction in jaw size due to less need for powerful chewing, while teeth stayed the same size leading to many problems

        • SkunkWorkz@lemmy.world
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          2 months ago

          Yeah. I remember a story about an anthropologist who went to a indigenous tribe, IIRC somewhere around the pacific, he took photos of everyone’s teeth. Everyone had straight teeth from the kids to the elderly. Then a generation later someone else did the same thing. Went to that tribe and took photos. Many kids had crooked teeth. The only thing that changed is that they adopted a Western diet.

          Can’t remember the name of that anthropologist, though.

      • SkunkWorkz@lemmy.world
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        2 months ago

        You get cavities from sugar not crooked teeth. It’s that our food has become softer over the last few thousand years. Our jaws don’t get enough exercise during their developmental years. So they don’t grow large enough for our teeth. It’s also why many people have impacting wisdom teeth.