That was 2014, so what's happened since then? Well, recently the current Prime Minister's Chief Science Advisor commissioned another review and what was looked at there was they said, "We have considered new research on fluoridation and comprehensive reviews published subsequently" and they found that the conclusions of the Royal Society in 2014 "remain appropriate." So nothing really changed. Fluoridation is still good at reducing dental caries and improving health outcomes in terms of oral health. 