[Effect of the working environment in the petrochemical industry on the periodontium and mucous membrane of vocational school students]. / Wplyw srodowiska pracy w przemysle petrochemicznym na przyzebie i blone sluzowa uczniów szkoly zawodowej.

The clinical dental examination was carried out at 6 months intervals in a group of 41 vocational school pupils exposed to chemical hazards in the petrochemical industry and a control group consisting of 30 pupils of an economic grammar school. The paradontium and mucous membrane of vocational school pupils before occupational exposure was worse than that of grammar school pupils. Pupils exposed to working environment hazards exhibited an increased rate of paradontium diseases.

[Dental caries, periodontal diseases and the condition of mouth mucosa in workers of the petrochemical industry]. / Stan próchnicy, chorób przyzebia i blony sluzowej jamy ustnej u pracowników przemyslu petrochemicznego.

259 workers of the divisions of the highest toxic substances risk in the working environment were examined. The masticatory system was examined clinically. The examinations indicated considerable caries in all workers. The intensity of the disease differed insignificantly between workers of particular divisions. Peridontal disorders were found in almost all workers (over 80% of subjects). The highest rate of those disorders was that in the workers of the Divisions of Furfural and Asphalt Oxidation. The periodontal disorders were fairly advanced. In most (over 60%) cases the destructive periodontal disease was diagnosed. Among the diseases of oral mucosa, leukoplakia was most frequent, affecting 42.8% of workers of Divisions of Furfural and 26.0% of workers of the Division Phenol.