Article | . Vol. 18, Issue. 1
Quantitative and qualitative analysis of microorganisms in dental unit water



Department of Public Health, Graduated School of Yeungnam University1
Department of Preventive Medicine and Public Health, College of Medicine, Yeungnam University2




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Objectives: The purpose of this study was to investigate the pathogenicity of microorganisms by quantitative and qualitative analysis of microorganisms before and after flushing of dental unit water. Methods: This study was conducted on the supply of high-speed handpieces, ultrasonic scalers, and air-water syringes, which sterilized from 10 dental unit chairs at a dental clinic in South Gyeongsang Province. The number of bacterial communities was calculated by collection before and after flushing (2, 4, and 6 minutes). Results: The mean number of bacteria in the handpiece water before flushing was 27,208 CFU/㎖; 2 minutes after flushing, 2,180 CFU/㎖; 4 minutes after flushing, 900 CFU/㎖; and 6 minutes after flushing, 412 CFU/㎖. Conclusions: To minimize the risk of cross-infection and intra-clinic infection in dental clinics, education and water quality monitoring may be needed.



  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  



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