2020—2023年广州市三级医疗机构口腔用水监测结果分析

Investigation and analysis of dental water contamination in medical institutions from 2020 to 2023

目的了解广州市三级医疗机构口腔用水的细菌污染情况。方法2020—2023年每年采集该市30家三级医疗机构的口腔用水,进行细菌培养及计数;采用问卷调查方法,于2023年对水路清洁消毒等情况进行现场调查。结果2020—2023年广州市三级医疗机构口腔用水合格率呈上升趋势,其中2020年合格率最低(58.2%),2023年合格率最高(93.2%)。水路消毒频率≥1次/周的诊疗水样合格率高于≤1次/月的诊疗水样合格率,分别为97.3%和83.3%(P=0.005)。结论该市三级医疗机构口腔用水的合格率明显提高,提高水路消毒频率能有效提高口腔用水合格率。

Objective To investigate the bacterial contamination of dental water in tertiary medical institutions in Guangzhou.Methods From 2020 to 2023,dental water samples from 30 tertiary medical institutions in Guangzhou were collected annually for bacterial culture and enumeration.A standardized questionnaire survey was conducted in 2023 to investigate the on-site situation of water supply system cleaning and disinfection.Results From 2020 to 2023,the qualified rate of dental water in tertiary medical institutions in Guangzhou showed an upward trend,among which the qualified rate was the lowest in 2020(58.2%),and the highest in 2023(93.2%)(P<0.001).The qualified rate of water samples for diagnosis and treatment with a frequency of≥1 time/week was higher than that of≤1 time/month,which were 97.3%and 83.3%,respectively(P=0.005).Conclusion The qualified rate of dental water in tertiary medical institutions in the city is significantly improved.Increasing the frequency of waterway disinfection can improve the qualified rate of dental water.