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Adding fluoride to water supplies

Excerpts: ... Given the certainty with which water fluoridation has been promoted and opposed, and the large number (around 3200) of research papers identified,9 the reviewers were surprised by the poor quality of the evidence and the uncertainty surrounding the beneficial and adverse effects of fluoridation. … Water fluoridation aims to reduce social inequalities in dental health,10 but few relevant studies exist. The quality of research was even lower than that assessing overall effects