Submitted by Takaharu7 t3_121wuz2 in askscience
tonkats t1_jdr9tke wrote
Reply to comment by Takaharu7 in How did humans 10000 Years ago care about their Teeth? by Takaharu7
Varies, but you can see some variants used definitely have medicinal properties. https://en.m.wikipedia.org/wiki/Teeth-cleaning_twig
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