Quantitative and qualitative analysis of microorganisms in dental unit water (치과용수 미생물의 정량적 및 정성적 분석)

이승희; 박지혜; Joon Sakong (사공준)

doi:10.13065/jksdh.20180040

Quantitative and qualitative analysis of microorganisms in dental unit water

Journal of Korean society of Dental Hygiene
Abbr : J Korean Soc Dent Hyg
2018, 18(4), pp.433~440
DOI : 10.13065/jksdh.20180040
Publisher : Korean Society of Dental Hygiene
Research Area : Medicine and Pharmacy > Dentistry

이승희 ¹, 박지혜 ², Joon Sakong ³

¹영남대학교 대학원 보건학과
²영남대학교 의과대학 예방의학교실
³영남대학교

Accredited

ABSTRACT

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.

KEYWORDS

Bacteria, Cross infection, Dental clinics, Dental unit water

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