乙型肝炎是一种严重的感染性疾病。目前已证实对于频繁接触血液和唾液的医护人员是一种职业性的威胁。口腔科医护人员极易与血液或唾液等传染媒介相接触,因而属于易染乙型肝炎的人群之一。据Joseph的报道牙科开业医师乙型肝炎感染率达13％,而一般人则为4％的感染率。Mosley对美国1245名牙医士进行调查,其血清阳性率为13.6％;Feldman报告口腔外科医师肝炎发病率可高达21％。 Hepatitis B is a serious infectious disease. Has now proved to be an occupational threat to health care workers who have frequent contact with blood and saliva. Stomatologists are easily exposed to vectors such as blood or saliva and are therefore one of the most vulnerable to hepatitis B. According to Joseph's report, dental practitioners have a hepatitis B infection rate of 13%, compared with a 4% infection rate in most people. Mosley conducted a survey of 1,245 dentists in the United States with a seroprevalence of 13.6%; Feldman reported that oral surgeons reported a high incidence of hepatitis of up to 21%.