'Look Ma! No cavities!' Wired report examines fluoride effort that started in Grand Rapids MLive.com
Before the fluoridation began, 32,000 city school children, plus control groups of 8,000 kids in Muskegon and Aurora, Ill., were given complete dental examinations.
After eight years, the Grand Rapids kids showed reductions of 50 to 70 percent in tooth decay rates.
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