口腔诊室空气质量动态研究

Dynamic air quality of dental clinic

摘要:

目的探讨工作状态下口腔科诊室的空气质量。方法使用空气消毒机连续30 d，每天对一面积为15 m2的口腔诊室进行2次消毒（早晨7∶00和下午13∶00，每次1 h），对工作过程中的诊室内空气连续采样（8∶00—17∶00，每小时1次，不包括13∶00），观察空气菌落数变化。结果上午8∶00的空气采样菌落数均值为（275.70±81.87）CFU/m3,9∶00—17∶00的空气采样菌落数均值为（411.80±175.66）～（968.10±204.14）CFU/m3。静态消毒后空气菌落数符合《消毒技术规范》要求，而持续1 h后空气中的菌落数明显超标（＞500 CFU/m3）。结论为保证口腔诊室空气质量在工作状态中符合国家规范要求，建议采用动态消毒措施并观察消毒效果。

Abstract:

ObjectiveTo evaluate air quality of a dental clinic in the state of working.MethodsAir of a dental clinic was disinfected by air disinfector twice a day for consecutive 30 days, disinfection was performed at 7∶00 AM and 13∶00 PM for 1 hour respectively, air samples in the state of working (once an hour between 8∶00AM17∶00PM, 13∶00PM excluded) were collected, and bacterial colonies were counted. ResultsThe average bacteria count were (275.70±81.87) CFU/m3 at 8∶00 AM, (411.80±175.66) CFU/m3(968.10±204.14) CFU/m3 at 9∶00 AM17∶00 PM. Air quality was in line with the Technical Standard for Disinfection at static state after disinfection, bacterial colony significantly exceeded standard with the extension of working hours.ConclusionIn order to ensure air quality of dental clinic in the state of working in line with national regulatory requirements, dynamic disinfection measures are recommended.