Effect of Using Hydrogen Peroxide for Periodic Disinfection Combined With Continuous Disinfection to Control Contamination in Dental Unit Waterline

• Published in: Sichuan da xue xue bao. Journal of Sichuan University. Yi xue ban Vol. 55; no. 1; pp. 217 - 223
• Main Authors: Chang, Jing, Dang, Yun, Wang, Chunli, Li, Xiue
• Format: Journal Article
• Language: Chinese
• Published: China 20.01.2024
• Subjects: Biofilms; Colony Count, Microbial; Disinfectants - pharmacology; Disinfection; Hydrogen Peroxide - pharmacology; Water - pharmacology; Disinfection; Dental unit waterlines; Hydrogen peroxide
• ISSN: 1672-173X
• DOI: 10.12182/20240160210

To observe the effect of using hydrogen peroxide in periodic disinfection combining with continuous disinfection of dental unit waterlines and to provide references for the selection of waterway disinfection measures. A total of 4 dental units in a hospital of stomatology were selected through convenience sampling. The dental unit waterlines received periodic disinfection once every 4 weeks in addition to continuous disinfection (When the dental units were not used for more than 3 days, an additional periodic disinfection would be performed.). Periodic disinfection referred to filling up the waterlines with a disinfectant solution (1.4% hydrogen peroxide) by using the waterline disinfection device that came with the dental unit, immersing for 24 hours, and then emptying out the disinfectant solution. Continuous disinfection referred to using hydrogen peroxide at a concentration of 0.014% as dental treatment water and using it to flush the waterlines for 2 minutes before any dental treatment in the morning and