口腔诊疗操作中高频接触表面的量性研究

目的 明确口腔诊疗操作中高频接触表面，为清洁消毒工作提供依据与指导。方法 采用直接观察法对北京市某三级甲等口腔医院7个门诊科室环境表面的接触时间与频次进行调查，计算平均接触频次、95%置信区间及累积接触频率。结果 口腔诊疗操作中环境表面平均接触26.75次/操作，平均接触频次最高为牙体牙髓病专业(46.25次/操作),最低为口腔黏膜病专业(10.19次/操作)。高频接触表面为无影灯手柄、综合治疗台操作面板及手柄(医生侧)、电脑键盘及鼠标、三用枪手柄及线前端、高速牙科手机及线前端，接触频次分别为3.99、3.85、2.65、1.86、1.40次/操作。所有口腔专业的高频接触表面均包含综合治疗台操作面板及手柄(医生侧),75%的专业包含电脑键盘及鼠标，50%的专业接触频次最高为无影灯手柄；环境表面平均接触频次最高为牙冠预备操作(113.50次/操作),最低为正畸咨询(8.50次/操作)。结论 不同口腔专业及不同口腔诊疗操作的高频接触表面不同，医疗机构应根据口腔科室高频接触表面的实际情况采取相应的清洁消毒及管理措施，切实提升环境清洁消毒质量。

Quantitative study on high-touch surface in oral diagnosis and treatment procedures

Objective To clarify the high-touch surface in oral diagnosis and treatment procedures, provide basis and guidance for cleaning and disinfection. Methods The direct observation method was used to investigate the touch time and frequency of environmental surfaces in 7 outpatient departments of a tertiary stomatology hospitals in Beijing. The average touch frequency, 95% confidence interval and cumulative touch rate were calculated. Results In oral diagnosis and treatment procedures, the average touch frequency of the environmental surface was 26.75 times per procedure, with the highest in endodontics (46.25 times per procedure) and the lowest in the oral mucosal specialty (10.19 times per procedure). The high-touch surface consisted of the shadowless lamp handle, manipulation panel and handle on dental unit (doctor''s side), computer keyboard and mouse, handle and line front end of three way syringe, as well as dental high speed handpiece and line front end, with average touch frequencies of 3.99, 3.85, 2.65, 1.86, and 1.40 times per procedure. The high-touch surface in all stomatology specialties included the manipulation panel and handle on dental unit (doctor''s side), 75% of specialties included computer keyboard and mouse, and the shadowless lamp handle has the highest touch frequency in 50% of specialties. The ave-rage touch frequency of the environmental surface was highest (113.50 times per procedure) during crown preparation procedure, and the lowest (8.50 times per procedure) during the orthodontic consultations. Conclusion The high-touch surface of different dental specialties and different diagnosis and treatment procedures are different. Me-dical institutions should take corresponding cleaning, disinfection and management measures according to the actual situation of high-touch surface in stomatology departments, so as to effectively improve the quality of environmental cleaning and disinfection.