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在职业体检中对天津某化工厂苯酐作业工人134名牙齿状况和工作环境进行了调查。发现苯酐作业组中的牙齿酸蚀症患病率(65.67％)明显高于对照组(14.19％),统计学检验差异有显著性(P<
During occupational physical examination, 134 dental workers and working conditions of phthalic anhydride workers in a chemical plant in Tianjin were investigated. The prevalence of dental erosion (65.67%) in the phthalic anhydride group was significantly higher than that in the control group (14.19%), and the difference was statistically significant (P <