Cohort study on risk of the hepatitis C virus infection of dental health care workers.

口腔科医护人员感染丙型肝炎病毒（HCV）的危险性较高，其感染途径与B型肝炎病毒相似。有报道称牙医职业性HCV感染风险较高。另一方面，风险也有低的报道.未决定有关风险的评价。本研究的目的是通过队列研究来评估口腔保健工作者HCV感染的危险性。此外，假设这是一个目的，这项研究，以澄清牙科保健工作者的职业危害因素。研究对象：833名口腔保健工作者。HCV抗体阳性率为0.48%。就这一结果而言，考虑到平均年龄，牙科保健工作者和献血者的抗体阳性率没有差异。同时，对889名年龄段人群进行了随访调查，未发现抗体转阴者。61%的牙科保健工作者在追踪期间经历过针刺伤害。然而，那些谁改变为阳性的HCV抗体，但没有看到这样的暴露。认为通过牙科治疗感染HCV的危险性远低于上述结果。

It was presumed that the risk of the hepatitis C virus (HCV) infection of dental health care workers was high rate because the infection route was similar to the Hepatitis B virus. There is a report with a high occupational HCV infection risk of dentist's. On the other hand, the risk also has the report of low. The evaluation concerning the risk is not decided. The purpose of this research is to evaluate the danger of the dental health care worker HCV infection, by the Cohort research. Moreover, it was assumed that it was a purpose of this research to clarify dental health care workers occupational hazard factor. The object : in 833 dental health care workers. The HCV antibody positivity rate was 0.48%. As for this result, the difference was not admitted in the antibody positivity rate of the dental health care worker and the blood donor who considered the average age. Meanwhile, those who changed to positive the antibody were not admitted though the follow-up survey of 889 person age was done. The dental health care worker of 61% experienced the needle stick injury for the pursuit period. However, those who changed to positive the HCV antibody were not seen though such an exposure was received. It was thought that the danger of the HCV infection through the dental treatment was much lower than that of the above-mentioned result.