the proper amount of fluoride helps prevent and control tooth decay in children and adults. fluoride works both while the teeth are developing and every day after the teeth have emerged through the gums. fluoride consumed during tooth development can also result in a range of visible changes to the enamel surface of the tooth. these changes have been broadly termed dental fluorosis. that is probably fluoride's no. 1 negative aspect.
what are the negative side effects of fluoride?