There has been barrels of ink, moles of electrons, and weeks of nighttime talk shows used up over notion that over the past 30 to 40 years, we were all duped. Flossing does nothing for your teeth. All that guilt about not doing it, wasted over nothing. But let’s be precise here. The FDA is citing “lack of strong evidence”, not that it had no effect.
Journalists, with a BS in something that is not a Bachelor of Science, take it to mean that there was some kind of propaganda conspiracy to get us to floss un-necessarily. It is amazing that journalists think we are that stupid. I get stuff in my teeth that I can’t get with my toothbrush, and journalists are leading me to believe that the FDA is telling me that it’s OK to leave it there?
“No evidence” was cited, since, according to the FDA, no one did a serious study. It could have been that the FDA thought that the benefits are self-evident. Do people really need evidence that getting stuff out from between their teeth is better for their oral health than leaving the food stuck in there? The FDA probably thought, rightly, that tax money could be better spent elsewhere.