Water fluoridation has been in place in England for more than 40 years, and now covers about 6 million people. The US Centers for Disease Control and Prevention calls adding fluoride to drinking water one of the 10 great public health achievements in the 20th century.
Public Health England (PHE) describes it as “a safe and effective public health measure” to combat tooth decay in children and, alongside dentists’ groups, has called for it to be implemented more widely.
But health experts are calling for a moratorium on water fluoridation, claiming that the benefits of such schemes, as opposed to those of topical fluoride (directly applied to the teeth), are unproved.
Furthermore, critics cite studies claiming to have identified a number of possible negative associations of fluoridation, including bone cancer in boys, bladder cancer, hyperthyroidism,hip fractures and lower IQ in children.