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Why didn't our ancient ancestors get cavities?

sciencenorway.no

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Re: Why didn't our ancient ancestors get cavities?

#202
post #106

Because brushing/flossing/scraping the teeth with a stick is a learned behavior that even today isn't fully learned by our species.

I wonder if human-like apes brush or floss? Do they drink naturally-occurring fluorinated water from wells? And I’d love to have some insights on their cavities and pulled teeth statistics.

They do at least floss:

https://www.science.org/content/article/monkeys-may-have-bet...

Re: Why didn't our ancient ancestors get cavities?

#203
post #101
post #22

Earlier quoted context omitted.

It's not just sugar - any carbohydrate which a bacterium can easily metabolize to sugar (i.e. most of them) is a hazard. Grains, tubers, etc. are all dangerous from a dental perspective and have only been consumed in calorically significant quantities after the advent of agriculture.

They are only dangerous if you don't brush or floss. With respect to ancient cultures a little twig is a damn effective dental cleaner and about as good as a modern toothbrush.

People today who brush regularly still have way more rotted-out teeth than people who didn't eat significant quantities of carbohydrates. They are dangerous even if you brush.

Re: Why didn't our ancient ancestors get cavities?

#204
post #73

Earlier quoted context omitted.

I don't think an extra molar at age 16 is going to let you survive after all your other teeth have fallen out. I would guess the wisdom teeth are either waiting for your jaw to mature or are in the process of devolving to never erupt at all.

That's not really how evolution works. There's no reason that modern humans would ever lose wisdom teeth unless NOT having them led to some evident increase in ability to produce healthy children in abundance. With the advent of dental care, that seems unlikely to ever happen by evolution.

The process of devolving to never erupt at all would have started long before modern dental care, driven by impaction complications or pressure to appear neotenous with a small jaw. I agree it won't continue.

Re: Why didn't our ancient ancestors get cavities?

#205

Earlier quoted context omitted.

Sounds great but I wanted to have a salad. Is there no way to make lettuce salad safe to eat?

It's just loaded with oxalate, eat it and be merry and don't mind the kidney stones and pseudo-gout.

Isn't oxalate the cause of 5G and so indirectly CORONA?

Re: Why didn't our ancient ancestors get cavities?

#206
post #80
post #33

My grandmother chewed betel leaves with a small amount of tobacco, betel nuts, lime (calcium hydroxide aka chuna/chun), multiple times a day all her life. Her other diet consisted of tea just as many times per day, and for actual food a diet of rice, fish, and vegetables. For the majority of her life I don't think she actually had access to fluoridated toothpaste and probably used neem twigs or even charcoal at times…

Interesting. My Indian grandparents and g-grandparents appeared to have most or all of their teeth, and were a long lived bunch (all but one into their 90s). I can’t say conclusively all but I never noticed any gaps or problems, which is the kind of thing kids notice. The g-grandparents would all have been born in the 19th century. My Australian grandmother had all her teeth pulled out when she was 12 and wore artifi…

Do you happen to have any idea if your g- and grandparents on the Indian side eat and or ate a lot of refined carbs like naan or white rice? Refined carbs being often called a modern thing and the cause of metabolic disease, but so far I've not really found that to be true.

Re: Why didn't our ancient ancestors get cavities?

#207

Earlier quoted context omitted.

> But raw milk is not inherently dangerous if consumed fresh. Categorically and emphatically: N o p e . Raw milk can be contaminated at the point of collection already. It doesn't matter if milk is fresh. Pathogenic bacteria contaminating raw milk can grow just fine in your gut and make you sick, they don't need to grow in the milk during transportation. In fact, transporation, in this day and age, is by refrigerated…

Pasteurization is not a free lunch. You also destroy enzymes, vitamins, and all the beneficial bacteria. The enzymes help to digest the milk and the beneficial bacteria compete with pathogenic bacteria in the gut (the above links to peer-reviewed studies and is by a PhD in Nutritional Immunology). Pasteurized milk prevents illness from contamination but it may not be as well tolerated by some people. Some children sh…

> There are small farmers all over industrialized countries who have no problem drinking raw milk (most of them probably, because the machines are expensive).

I know this is threadomancy, two weeks later, but - how the hell would you know that?

If a farmer in Ghana gets the shitters for a week after drinking raw milk, how would you know? If their kid gets meningitis caused by Listeria and needs to have a hand amputated, or a foot, how would you know?

You wouldn't. But the WHO and a bunch of other health agencies around the world collect data on this sort of thing. And the sad truth that emerges is that the majority of food poisoning happens in non-industrialised, developing countries.

Got that? In countries were people don't have a food industry, where raw milk and dairy is all the dairy they can consume, and where everything is fresh, as fresh as fresh can be, that's where most of the food-borne diseases happen.

You wanna know why? Because modern standards of hygiene work, bitches. That's why. And that includes pasteurisation which is basically a method to scrub milk clean of pathogens.

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