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A study of the occurrence of pneumoconiosis and its relationship to exposure to cobalt and chromium containing dusts was conducted. The study group consisted of 34 male and three female dental technicians in central and southeastern Sweden who had worked with cobalt, chromium, and molybdenum alloys for at least 5 years. Dust samples were collected in eight laboratories and analyzed. Chest X-rays were obtained and pulmonary function tests were conducted on the subjects. Six dental technicians (16%) had evidence of pneumoconiosis. Changes in pulmonary function tests were significantly associated with hours of week spent working with the metal alloys. The authors conclude that impaired lung function and pneumoconiosis are major hazards for dental technicians exposed to dusts generated by processing cobalt, chromium, and molybdenum alloys.
Thorax, 50(7):769-772, 1995. (25 references)
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