2011年4—6月我们对341名长期在特殊环境工作人员和67名普通人员部分口腔相关疾病发病情况进行调查。现报告如下。1资料与方法1.1一般资料调查长期在特殊环境下工作的18～56岁人员341名,年龄平均27.1岁;工龄2～34年,平均7.9年;年照射剂量当量为1.8～16.5mSv,累计照射剂量当量为3.8～425mSv,平均97.3mSv。其中,95.9%(327/341)为男性;39.6%(135/341)为城镇籍;96.5%(329/341)为汉族;43.4%(148/341)为高中专文化 From April to June 2011, we investigated the incidence of oral related diseases in 341 long-term special environmental workers and 67 general staff. The report is as follows. 1 Materials and Methods 1.1 General Information Survey 341 long-term work in special circumstances, aged 18 to 56 341, average age of 27.1 years; length of 2 to 34 years, an average of 7.9 years; annual exposure dose equivalent of 1.8 ~ 16.5mSv, the cumulative exposure The dose equivalent is 3.8 ~ 425mSv, with an average of 97.3mSv. Among them, 95.9% (327/341) were male; 39.6% (135/341) were urban residents; 96.5% (329/341) were Han nationalities; 43.4% (148/341)