Retraction of dental unit waterlines in Tianjin City
10.3969/j.issn.1671-9638.2015.11.006
- VernacularTitle:天津市口腔综合治疗台水路回吸调查
- Author:
Xueyue JI
;
Chunnan FEI
;
Peng SHEN
;
Jun LIU
;
He LIU
;
Jia SONG
- Publication Type:Journal Article
- Keywords:
department of stomatology;
dental chair unit;
medical water in department of stomatology;
dental unit waterline;
pipe contamination;
bacterial contamination;
retraction;
healthcare-associated infection
- From:
Chinese Journal of Infection Control
2015;(11):743-745
- CountryChina
- Language:Chinese
-
Abstract:
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.
