Disinfection and Bacterial Contamination of Dental Unit Waterlines in Nanjing’s Healthcare Institutions

Lili Guo; Jingyi Lyu; Ying Huang

doi:10.11910/j.issn.2791-2043.2025.3.07

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Disinfection and Bacterial Contamination of Dental Unit Waterlines in Nanjing’s Healthcare Institutions

MONOGRAPHIC STUDY | Updated：2026-01-31

- Disinfection and Bacterial Contamination of Dental Unit Waterlines in Nanjing’s Healthcare Institutions
- Sterile Supply Vol. 4, Issue 3, (2025)
- Affiliations：
  
  Department of Nosocomial Infection Management, Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, 210003, China
- Author bio：
  
  Ying Huang at 1119625376@qq.com
- Funds：
- DOI：10.11910/j.issn.2791-2043.2025.3.07
  CLC：
- Published：15 October 2025
- Accepted：
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Guo Lili,Lyu Jingyi,Huang Ying.Disinfection and Bacterial Contamination of Dental Unit Waterlines in Nanjing’s Healthcare Institutions[J].Sterile Supply,2025,04(03):191-197.
DOI：

Guo Lili,Lyu Jingyi,Huang Ying.Disinfection and Bacterial Contamination of Dental Unit Waterlines in Nanjing’s Healthcare Institutions[J].Sterile Supply,2025,04(03):191-197. DOI： 10.11910/j.issn.2791-2043.2025.3.07.

摘要

Abstract

This study aims to analyze the current status of dental unit waterline (DUWL) disinfection and bacterial contamination in stomatology departments in Nanjing’s healthcare institutions. Targeted stomatology departments

a specialized investigation was conducted focusing on DUWL disinfection methods

disinfection frequency

water quality monitoring

and bacterial contamination

systematically analyzing current disinfection management deficiencies and potential risks of bacterial contamination. The investigation revealed significant variations in the implementation effectiveness of DUWL disinfection measures among stomatology departments in Nanjing’s dental institutions. Some institutions exhibited deficiencies such as singular disinfection methods

insufficient frequency

and weak water quality monitoring. The bacterial contamination levels exceeded relevant standards

posing an impact on treatment safety. This study suggests to optimize disinfection procedures and strengthen monitoring mechanisms in accordance with industry standards to reduce contamination levels and ensure the safety of dental treatment water.

关键词

Keywords

references

WANG G Q , ZHANG J , LOU J , et al . Investigation of bacterial contamination and disinfection level in oral dental chair waterway and application of flushing method in reducing bacterial contamination [J ] . Chinese Journal of General Practice , 2021 , 19 ( 7 ): 1228 - 1231 .

WANG X R . Analysis of water pollution factors in comprehensive treatment table of dentistry and research and prevention and control measures study [J ] . Smart Healthcare , 2024 , 10 ( 7 ): 168 - 171 .

WANG J , GAO J . Disinfection effect of water-gas disinfection and sterilization device on dental chair waterway [J ] . Medical Higher Vocational Education and Modern Nursing , 2022 , 5 ( 6 ): 532 - 535 .

CHANG J , DANG Y , WANG C L , et al . Effect of using hydrogen peroxide for periodic disinfection combined with continuous disinfection to control contamination in dental unit waterline [J ] . Journal of Sichuan University (Medical Sciences) , 2024 , 55 ( 1 ): 217 - 223 .

SHEN W Y . Prevention Strategies for Nosocomial Infections in the Stomatology Department of Hospital [J ] . Journal of Frontiers of Medicine , 2021 , 11 ( 16 ): 195 - 196 .

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