两种消毒方法对牙科手机灭菌效果的评价  

THE EVALUATION OF TWO STERILIZING METHODS ON DENTAL HANDPIECES.

作　　者：戴青[1] 邓小虹[2] 孙正[1] 郝世雄[1] 丁利[1] 

机构地区：[1]首都医科大学口腔医学院,100050 [2]北京市疾病预防控制中心,100013

出　　处：《北京口腔医学》2003年第1期20-21,28,共3页Beijing Journal of Stomatology

摘　　要：目的 :比较含氯消毒剂浸泡法和环氧乙烷气体灭菌法对牙科手机的灭菌效果。方法 :利用枯草杆菌黑色变种芽孢和乙肝表面抗原阳性血清污染牙科手机 ,消毒后进行定量杀菌实验 ,用酶联免疫吸附实验 (ELISA)法检测HBsAg 结果 :牙科手机浸泡在有效氯含量为 30 0 0× 10 -6的消毒剂中 30分钟 ,细菌杀灭率及乙肝表面抗原的抗原灭活率均未达到 10 0 % ,而环氧乙烷灭菌法可达到 10 0 %。结论 :环氧乙烷灭菌牙科手机效果可靠。Objective:To study the efficacy of two sterilizing methods on dental handpieces.Methods:Dental handpieces cantaminated with Bacillus subtilis var.niger spores and HBV were sterilized by two methods.The amount of bacterial culture were measured after sterilization,and HBsAg was detected by using ELISA.Results:The efficacy of killing Bacillus subtilis var.niger spores and destroying HBsAg antigencity on dental handpieces exposed to a solution containing chlorine 3000mg/L for 30 min were not 100%,meanwhile ethylene oxide were 100%.Conclusion:The efficacy of sterilization with ethylene oxide on dental handpieces was reliable.

关 键 词：消毒方法 牙科手机 灭菌效果 评价 环氧乙烷 含氯消毒剂 

分 类 号：R780.1[医药卫生—口腔医学]