“Fluoride is important in oral health and in the prevention of caries as it has three functions. It enhances remineralisation following consumption of food; once incorporated into the enamel is inhibits demineralisation; and it inhibits the ability of bacteria to adhere to, and thus attack, tooth enamel.“
Fluoride is a naturally occuring mineral, but it’s concentration in local water supplies is wide ranging. In some countries, fluoride levels are adjusted downwards to prevent the harmful effects of high doses. In New Zealand, however, they are adjusted upwards to provide optimal health benefits.
26 March 2015