Methods After dental instruments contaminated with HBV were sterilized with three different disinfection methods, ELISA method was used to examine disinfection efficacy of HBsAg.

• 在口腔疾病治疗过程中，由于口腔器械直接接触患者的血液、唾液、组织液等，病原性传播、感染的机会很大。