Film for the promotion of fluoride.

If it was that good why in state-mandated fluoridated Illinois is there such a record of dental decay? There is no mention of fluorosis or the additional pollutants that come with hexafluorosilicic acid including arsenic and mercury. No mention that fluoride only works topically. No mention of the many thyroid problems and other risks such as cancer. Very convincing though if you didn't know anything about the issue.