ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)63571
CIS number 95-136
ISSN - Serial title 1351-0711 - Occupational and Environmental Medicine
Year 1994
Convention or series no.
Author(s) Bernstein M., Pairon J.C., Morabia A., Gaudichet A., Janson X., Brochard P.
Title Non-fibrous dust load and smoking in dental technicians - A study using bronchoalveolar lavage
Bibliographic information Jan. 1994, Vol.51, No.1, p.23-27. 25 ref.
Abstract A study was conducted with transmission electron microscopy to find out whether bronchoalveolar lavage (BAL) could be used to identify subjects with occupational exposure to mineral particles. BAL fluid from 46 dental technicians and 41 controls with lung diseases but free from occupational exposure to dusts was analyzed. The total particle concentration in BAL fluid was significantly higher in dental technicians than in controls (12.18 x 105 particles/mL of BAL fluid, compared to 2.03 x 105 particles/mL, p<0.001). Dental technicians had significantly more crystalline silica, aluminium, and alloys containing nickel and chromium. There was a non-significant two-fold increase of total particle concentration in the lungs of dental technicians who were smokers compared with non-smokers. The results strongly support the use of BAL fluid analysis to assess dust accumulation in workers in heavily exposed occupations such as dental technicians. This is a valid method to evaluate occupational exposure to non-fibrous mineral particles, and possibly to determine the occupational aetiology of some respiratory diseases.
Descriptors (primary) mineral dust; smoking; bronchopulmonary lavage; respirable dust; dental services; lung diseases
Descriptors (secondary) exposure evaluation; transmission electron microscopy; case-control study
Document type D - Periodical articles
Country / State or ProvinceSwitzerland; France
Subject(s) Dust, aerosols and related diseases
Broad subject area(s) Occupational medicine, epidemiology
Browse category(ies) Diseases of the respiratory system (except for pneumoconiosis & similar)
Health care services
Smoking