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Document ID (ISN)68806
CIS number 97-555
ISSN - Serial title Sangyō Eiseigaku Zasshi
Year 1996
Convention or series no.
Author(s) Goto H., Hosaka M., Ueda T., Yoshida M., Hara I.
Title Association between dental erosion and exposure to acids in a chemical factory
Original title Ichi kagaku kojo ni okeru shokugyo sei shiga sanshoku sho to san bakuro tono kankei [in Japanese]
Bibliographic information Aug. 1996, Vol.38, No.4, p.165-171. Illus. 10 ref.
Abstract An examination of dental erosion status and a semi-quantitative assessment of exposure to acids were carried out for 134 workers in a chemical factory in Osaka Prefecture, Japan. Some 30.6% of the workers showed dental erosion of grade + or above, on a scale of - to 3+. Most of the erosion was observed in the front teeth. There were more eroded teeth in the upper jaw than in the lower jaw. The workers were divided into 4 groups according to job type at the time of the examination: production, research, clerical work and others. The production group, those routinely handling a large amount of various kinds of acids, had the highest proportion of workers with eroded teeth. Because some of the clerical workers had previously handled acids, this group of workers included a larger number with dental erosion than the other two groups. More than half of the workers who had been engaged in production had eroded teeth, including grade ▒. The intensity of exposure to acids, as a semi-quantitative index for cumulative exposure to acids, was calculated for each worker from a score for the job type and its duration. A significant association was observed between the intensity and the manifestation of dental erosion.
Descriptors (primary) dental erosion; acids; long-term exposure; exposure evaluation; chemical plant
Descriptors (secondary) cross-sectional study; Japan
Document type D - Periodical articles
Country / State or ProvinceJapan
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Mouth and teeth diseases
Inorganic acids
Exposure evaluation