|Document ID (ISN)||63571|
|ISSN - Serial title
||1351-0711 - Occupational and Environmental Medicine
|Convention or series no.
||Bernstein M., Pairon J.C., Morabia A., Gaudichet A., Janson X., Brochard P.
||Non-fibrous dust load and smoking in dental technicians - A study using bronchoalveolar lavage
||Jan. 1994, Vol.51, No.1, p.23-27. 25 ref.
||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.
||mineral dust; smoking; bronchopulmonary lavage; respirable dust; dental services; lung diseases
||exposure evaluation; transmission electron microscopy; case-control study
||D - Periodical articles
|Country / State or Province||Switzerland; France|
||Dust, aerosols and related diseases
|Broad subject area(s)
||Occupational medicine, epidemiology
||Diseases of the respiratory system (except for pneumoconiosis & similar)
Health care services