Pneumoconiosis and exposures of dental laboratory technicians

W.N. Rom, J.E. Lockey, J.S. Lee, A.C. Kimball, K.M. Bang, H. Leaman, R.E. Johns , D. Perrota and H.L. Gibbons

American Journal of Public Health, 1984, vol. 74, issue 11, 1252-1257

Abstract: One hundred and seventy-eight dental laboratory technicians and 69 non-exposed controls participated in an epidemiological respiratory study. Eight technicians who had a mean of 28 years' grinding nonprecious metal alloys were diagnosed as having a simple pneumoconiosis by chest radiograph. Mean values for per cent predicted FVC and FEV1 were reduced among male nonsmoker technicians compared to male nonsmoker controls; after controlling for age, there was also a reduction in spirometry with increasing work-years. An industrial hygiene survey was conducted in 13 laboratories randomly selected from 42 laboratories stratified by size and type of operation in the Salt Lak City, Utah metropolitan area. Personal exposures to beryllium and cobalt exceeded the Threshold Limit Values (TLVs) in one laboratory. Occupational exposures in dental laboratories need to be controlled to prevent beryllium-related lung disorders as well as simple pneumoconiosis.

Date: 1984
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Persistent link: https://EconPapers.repec.org/RePEc:aph:ajpbhl:10.2105/ajph.74.11.1252_9

DOI: 10.2105/AJPH.74.11.1252

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