Correlation doesn't yield causation! The whole fluoride in drinking water only came up based on a study from abroad. There, they noticed an improvement of denta

Correlation doesn't yield causation! The whole fluoride in drinking water only came up based on a study from abroad. There, they noticed an improvement of dental health over time after they introduced fluoride in their water. However, this study and the same for the 50th ignore the fact that dental hygiene and awareness dramatically improved during this time. Thus, the better dental health is more likely from better topical application of fluoride and more regular brushing/flossing. I'm concerned that we have all the scientific facts and keep ignoring them. Fun fact: Dentists recommend flossing before brushing. Edit: "For example, in Finland and Germany, tooth decay rates remained stable or continued to decline after water fluoridation stopped in communities with widespread fluoride exposure from other sources." - https://en.m.wikipedia.org/wiki/Water_fluoridation https://en.m.wikipedia.org/wiki/Water_fluoridation