In 1949, Antigo, Wis. (present pop. 9,600), became one of the first communities in that state to put fluorides into its water supply in an effort to cut down tooth decay. But anti-fluoridation groups kept up a vigorous campaign, claiming that fluoride, a poison when taken in large doses, had cumulative toxic effects even when taken in small quantities. Despite doctors' denials based on extensive surveys, worried Antigo citizens pushed through a 1960 referendum repealing fluoridation. But before fluorides were eliminated from the town's water supply, the Wisconsin State Board of Health conducted a careful study of tooth...
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