• Limonene@lemmy.world
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    19 days ago

    Pre-dentistry, a bunch of your teeth would have fallen out before your wisdom teeth came in. There would have been space for the wisdom teeth so they wouldn’t need to come in sideways.

      • Lyrl@lemm.ee
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        19 days ago

        they’ve been shrinking as we evolved changed our diet

        No genetic changes (evolution) happened. If as children we ate only very tough meat and lots of chewy vegetables - no bread or rice or potato softness - our same genetics would result in much larger adult jaws.

    • ryedaft@sh.itjust.works
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      19 days ago

      Are you sure about that? We lost so many teeth after the industrialisation of sugar production (machines and slavery) but I’m not sure how bad it was before then.

        • thisisbutaname@discuss.tchncs.de
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          19 days ago

          Teeth used to get cleaned by means of chewing harder food regularly, and they needed less cleaning to start with due to a lot less sugar in those foods though

          • Maeve@kbin.earth
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            19 days ago

            So I searched it up. Food that was more abrasive, no refined carbs, more fibrous, more meat, less grain, more tannins. And ancient toothbrushes from frayed twigs, which also contained natural antimicrobials!

            Thanks for prompting this educational exchange!

      • shortypig@lemmy.dbzer0.com
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        19 days ago

        And our teeth really went downhill after we started reproducing without the quality check provided by survival of the fittest. The remains of hunter gatherers generally have very nice teeth.

        • ryedaft@sh.itjust.works
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          19 days ago

          Nah.

          There seems to be a genetic variation that eliminates some or all wisdom teeth. It arose in Asia so long ago that the people who populated North and South America also had it. And in most populations it is still not very prevalent (less than 50%). Despite having been around for ages.