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A comment on Teeth Whitening and the Hygiene Hypothesis. Parent comment

Re:Teeth Whitening and the Hygiene Hypothesis by hodwik on Sunday August 02, 2015 @10:38AM (#9990866)
A lot of Asian cultures actually have a culture around teeth blackening.

http://www.traveldudes.org/travel-tips/tooth-blackening-forg...

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Re:Teeth Whitening and the Hygiene Hypothesis by tabio on Sunday August 02, 2015 @02:58PM (#9991901)
And some American subcultures have a cuture around teeth goldening!
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