光固化灯光导棒细菌粘附状况的调查  

Investigation on bacteria adhesion conditions on dental curing light-guide rods

作　　者：唐晓君[1] 施生根[1] 卢怡[1] 刘艮兰[1] 张建波[1] 陆林杰[1] 

机构地区：[1]解放军第三零六医院全军口腔疾病诊治中心,硕士生北京100101

出　　处：《口腔颌面修复学杂志》2015年第5期257-261,共5页Chinese Journal of Prosthodontics

基　　金：国家863计划课题(项目编号:2012AA030602)

摘　　要：目的:明确口腔科光固化灯光导棒消毒隔夜放置后的细菌粘附状况,为控制院内交叉感染提供实验依据。方法:选取某医院6个口腔诊室的50个光导棒,采用三磷酸腺苷(Adenosine triphosphate,ATP)生物荧光法,对消毒隔夜放置后光导棒表面的细菌粘附状况进行检测,检测时间为早上开诊前,每天检测1次,连续5个工作日。结果:儿童口腔诊室、牙体牙髓诊室、口腔综合诊室、修复诊室、颌面外科诊室及牙周诊室光导棒的相对光单位值(relative light unit,RLU)依次为:516±58.9、300±22.8、239±108.1、57±12.2、47±11.5、35±6.5,各个诊室之间R LU值的差异非常显著(P<0.01);同一诊室不同检测日间R LU值的方差分析显示:儿童口腔诊室、牙体牙髓诊室、口腔综合诊室、颌面外科诊室不同检测日间RLU值的差异无统计学意义(P>0.05),修复诊室、牙周诊室第2、3、4、5日间RLU值的差异无统计学意义(P>0.05)。结论:口腔科各诊室光导棒消毒隔夜放置后,在开诊前的细菌粘附均超过卫生部规定的标准,消毒的光导棒宜密封贮存,否则,使用前应再次进行消毒处理;诊疗项目、通风状况不同的诊室间,空气中悬浮的细菌量有显著差异。Objective： To investigate the bacteria adhesion conditions on the dental curing light-guide rods overnight placement disinfection for controlling nosocomial cross infection. Methods： Fifty light-guide rods in six dental clinics of one hospital were chosen, and the bacteria adhesion conditions on the light-guide rods overnight placement disinfection were examined with ATP bioluminescence method. The test was conducted every morning before the clinic opens and repeated for 5 consecutive days. Results： The relatively light units（RLU） value of the light-guide rods for children dental clinic, dental pulp clinic, oral comprehensive clinic, dental repair clinic, maxillofacial surgery clinic and dental periodontal clinic are551 ±106.0, 301 ±108.8, 296 ±113.5, 59 ±23.7, 48 ±15.9, 35 ±9.8. The difference between each clinic＇s RLU value is significantly different（P〈0.01）. The test for the same clinic in one week shows that the RLU value difference is not significantly different in the all five days for children＇s dental clinic, dental pulp clinic, oral comprehensive clinic and maxillofacial surgery clinic, and not significantly different in the second, third, fourth, fifth day for the dental repair clinic, dental periodontal clinic as well（P 〉0.05）. Conclusions： All the bacteria adhesion conditions on the light-guide rods overnight placement disinfection in each dental clinic before openning are out of the standards that stipulated by the Ministry of Health, and the dental curing lights should be disinfected prior to usage. And significant difference is found between all the bacteria adhesion conditions in each dental clinic.

关 键 词：光固化灯 光导棒 细菌粘附 交叉感染 

分 类 号：R783[医药卫生—口腔医学]