广州市医疗机构口腔科诊疗用水卫生状况调查分析  

Hygienic status of dental clinic water in departments of stomatology in medical institutions,Guangzhou

作　　者：张旭[1] 林云万[1] 贺征[1] 梁会营[1] 黄婕[1] 

机构地区：[1]广州市疾病预防控制中心,广东广州510440

出　　处：《华南预防医学》2014年第6期531-534,共4页South China Journal of Preventive Medicine

基　　金：广州市医药卫生科技项目(20131A011109)

摘　　要：目的了解广州市医疗机构口腔科诊疗用水卫生状况,为医疗机构口腔科医院感染控制提供科学依据。方法采用分层整群随机抽样和普查的方法,对各级别医疗机构净水式和储水式口腔综合治疗台的水源水、嗽口水、冲洗水和手机喷水进行采样检测,根据GB 15982—2012《医院消毒卫生标准》、GB 5749—2006《生活饮用水卫生标准》对样本进行细菌分离培养、鉴定和评价。菌落总数采用中位数(上四分位数,下四分位数)[M(P25,P75)]表示。结果共采集净水式治疗台诊疗用水204份(嗽口水、冲洗水、手机喷水各68份),嗽口水菌落总数为40.00(10.50,373.50)CFU/m L,冲洗水菌落总数为1 141.50(185.00,2 995.00)CFU/m L,手机喷水菌落总数为3 302.00(1 397.75,5 601.25)CFU/m L;净水式治疗台不同诊疗用水的菌落总数比较差异有统计学意义(P<0.01)。共采集储水式治疗台诊疗用水66份(水源水、冲洗水和手机喷水各22份),水源水菌落总数为225.00(17.50,1 619.75)CFU/m L,冲洗水菌落总数为2 160.00(440.00,3 652.00)CFU/m L,手机喷水菌落总数为2 665.50(252.00,5 636.00)CFU/m L;储水式治疗台不同诊疗用水的菌落总数比较差异有统计学意义(P<0.05)。检出污染优势菌主要为少动鞘氨醇单胞菌、少见嗜铜菌、洋葱伯克霍尔德菌、皮氏罗尔斯顿菌等。结论广州市医疗机构口腔科诊疗用水污染严重,须采取有效的消毒措施,并定期监测,预防口腔科医院感染的发生。Objective To investigate hygienic status of dental clinic water in departments of stomatology in Guangzhou so as to provide scientific basis for control of nosocomial infection. Methods Samples of dental source water,dental mouth wash,washing water,and hand-piece water in self-purifyingtyped and storage-typed dental unit waterlines of medical institutions at different levels were collected by multi-stage stratified random sampling method and general survey. Bacteria of water samples were isolated,identified and evaluated based on health standard for disinfection in hospitals（ GB 15982- 2012） and health standards for drinking water quality（ GB 5749- 2006）. Total bacteria counts were expressed by the median（ P25 and P75）. Results A total of 204 water samples were collected from self-purifying-typed dental unit waterlines（ 68 samples for each of dental mouth wash,washing water,and hand-piece water）and the total bacteria counts were 40. 00（ 10. 50- 373. 50） CFU / m L in mouth wash,1 141. 50（ 185. 00- 2 995. 00） CFU / m L in washing water,and 3 302. 00（ 1 397. 75- 5 601. 25） CFU / m L in hand-piece water. There were statistically significant differences in total bacteria counts among different treatment water samples of self-purifying-typed dental unit waterlines（ P〈0. 01）. Meanwhile,66 water samples were collected from storage-typed dental unit waterlines（ 22 samples for each of dental source water,washing water,and hand-piece water） and the total bacteria counts were 225. 00（ 17. 50- 1 619. 75） CFU / m L in dental source water,2 160. 00（ 440. 00- 3 652. 00） CFU / m L in washing water,and 2 665. 50（ 252. 00-5 636. 00） CFU / m L in hand-piece water,respectively. Significant differences were found in total bacteria counts among different treatment water samples in storage-typed dental unit waterlines（ P〈0. 05）. Dominant bacteria were Sphingomonas paucimobilis,Cupriavidus pauculus,Burkholderia cepacia,and Ralstonia pickettii. Conclusion The dental unit waterlines w

关 键 词：口腔综合治疗台 诊疗用水 卫生状况 

分 类 号：R117[医药卫生—公共卫生与预防医学] R78