The evidence for flossing is pretty weak. I think it's mostly an American thing, kinda like circumcision (when compared to Europe). I never flossed even once in

The evidence for flossing is pretty weak. I think it's mostly an American thing, kinda like circumcision (when compared to Europe). I never flossed even once in my life and don't know anyone who did. (I'm not suggesting that's a reason not to do it!)