目前,我国齿科的补齿技术,仍采用汞齐法,这种方法造成汞对有关科室环境的严重污染。据上海卫生防疫站96年度对上海市卢湾、南市、黄浦、静安等四个区28家医院的齿科作业区进行调查:发现现场空气中汞浓度平均超标 3倍～5倍,国家卫生标准 0.01×10~(-3)mg/l。接触汞的医护人员尿汞异常占被调查人员中的41.9％。尿汞正常值参考标准 At present, dental technology in our country, still using amalgam method, this method of mercury caused by the relevant departments of the serious pollution. According to a survey carried out by Shanghai Health and Epidemic Station in Shanghai in 1996 on dental operations in 28 hospitals in four districts of Luwan, Nanshi, Huangpu and Jing'an, it was found that the average mercury concentration in the air at the scene exceeded 3 times to 5 times on average, and the national health standards 0.01 × 10 ~ (-3) mg / l. Urinary mercury abnormalities among medical personnel exposed to mercury accounted for 41.9% of the surveyed persons. Urine mercury normal reference standard