Fluoride Action Network


Four cases of skeletal fluorosis are described in individuals who had been working in an aluminum plant for periods up to 12 yens. Two patients exhibited radiological changes indicative of the first stage of the disease and two of the second stage. All patients exhibited backache, pains in arms and legs and paresthesias. Laboratory tests were of little
diagnostic value. Twenty-four hour urinary fluoride excretion ranged from 1.15 mg to 6 mg. The teeth contained unusually high fluoride levels.