CAJ | 학술논문

目的：调查医疗机构口腔综合治疗台水路（DUWLs）回吸量，探讨影响 DUWLs 回吸的因素。方法采用系统随机抽样的方法对2014年5—11月天津市口腔综合治疗台（DCU）进行抽样，应用自行研制的回吸检测器对 DUWLs 回吸量进行检测，同时调查相关影响因素。结果共调查天津市10个区（县）30所医疗机构中58台 DCU，平均 DUWLs 回吸量为（103．60±117．85）mm3，DUWLs 回吸量合格率为48．28％（28／58）；DCU已使用时间与 DUWLs 回吸量呈正相关（r ＝0．52，P ＜0．001）。不同医疗机构所属区县、医疗机构级别与类别、DCU 品牌、DCU 供水方式的 DUWLs 回吸量比较，差异均无统计学意义（均 P ＞0．05）。结论DUWLs 回吸量检测合格率低，应加强 DCU 的日常维护与保养，尤其是使用时间长的 DCU，应防止因防回吸阀门失效导致的DUWLs出水污染。
목적：조사의료궤구구강종합치료태수로（DUWLs）회흡량，탐토영향 DUWLs 회흡적인소。방법채용계통수궤추양적방법대2014년5—11월천진시구강종합치료태（DCU）진행추양，응용자행연제적회흡검측기대 DUWLs 회흡량진행검측，동시조사상관영향인소。결과공조사천진시10개구（현）30소의료궤구중58태 DCU，평균 DUWLs 회흡량위（103．60±117．85）mm3，DUWLs 회흡량합격솔위48．28％（28／58）；DCU이사용시간여 DUWLs 회흡량정정상관（r ＝0．52，P ＜0．001）。불동의료궤구소속구현、의료궤구급별여유별、DCU 품패、DCU 공수방식적 DUWLs 회흡량비교，차이균무통계학의의（균 P ＞0．05）。결론DUWLs 회흡량검측합격솔저，응가강 DCU 적일상유호여보양，우기시사용시간장적 DCU，응방지인방회흡벌문실효도치적DUWLs출수오염。
Objective To survey the retraction of dental unit waterlines (DUWLs)in medical institutions,and evaluate the influencing factors for retraction of DUWLs.Methods In May-November 2014,dental chair units (DCUs)in medical institutions in Tianjin City were sampled through systematic random sampling method,retrac-tion volume of DUWLs was detected by independently made detector,the relevant influencing factors were investi-gated.Results A total of 58 DCUs in 30 medical institutions in 10 districts(counties)of Tianjin were investigated, the average retraction volume of DUWLs was (103.60 ±117.85 )mm3 ,the qualified rate of retraction volume of DUWLs was 48.28 %(28/58);length of utilization of DCUs was positively correlated with DUWLs retraction (r=0.52,P <0.001).There were no significant difference in retraction volume of DUWLs among medical institutions in different districts(counties),levels of medical institutions,DUC brands,and modes of DUC water supply(all P >0.05 ).Conclusion The qualified rate of retraction volume of DUWLs is low,routine maintenance of DUCs needs to be intensified,especially the long-term used DUCs,contaminatin of DUWLs due to the invalidity of retraction valve should be prevented.