Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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The Effectiveness of Clinical Sterilization Methods in Dental Air/water Syringes

임상적으로 유용한 치과용 Air/water syringe의 소독법

  • Shin, Seyoung (Department of Pediatric Dentistry and Institute of Oral Bioscience, School of Dentistry, Chonbuk National University) ;
  • Yang, Yeonmi (Department of Pediatric Dentistry and Institute of Oral Bioscience, School of Dentistry, Chonbuk National University) ;
  • Kim, Miah (Department of Pediatric Dentistry and Institute of Oral Bioscience, School of Dentistry, Chonbuk National University) ;
  • Kim, Jaegon (Department of Pediatric Dentistry and Institute of Oral Bioscience, School of Dentistry, Chonbuk National University) ;
  • Baik, Byeongju (Department of Pediatric Dentistry and Institute of Oral Bioscience, School of Dentistry, Chonbuk National University)
  • 신세영 (전북대학교 치의학 전문대학원 소아치과학교실 및 구강생체과학연구소) ;
  • 양연미 (전북대학교 치의학 전문대학원 소아치과학교실 및 구강생체과학연구소) ;
  • 김미아 (전북대학교 치의학 전문대학원 소아치과학교실 및 구강생체과학연구소) ;
  • 김재곤 (전북대학교 치의학 전문대학원 소아치과학교실 및 구강생체과학연구소) ;
  • 백병주 (전북대학교 치의학 전문대학원 소아치과학교실 및 구강생체과학연구소)
  • Received : 2013.10.02
  • Accepted : 2013.10.23
  • Published : 2013.11.29
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Abstract

This study aims to investigate contamination level and effective clinical disinfection methods of dental air/water syringes (AWS) by using microbial incubation. This study used AWS of ten dental unit chairs of Hospital. Total 180 samples were obtained. There are six groups of samples: non-sterilized (group 1), sanitized with wet-gauze (group 2), sanitized with 78% ethanol sponge for 10 seconds (group 3), sanitized with 78% ethanol sponge for 20 seconds (group 4), sanitized with 1 : 100 diluted High Level Disinfectant$^{(R)}$ (group 5), autoclaved (group 6). Group 1 and 2 showed statistically significant level of CFUs than Group 4, 5 and 6 (p < 0.05). Group 4, 5 and 6 did not show any noticeable CFU. Sanitizing AWS tips with ethanol and High level Disinfectant$^{(R)}$ proves to be a useful and practical method for preventing cross-infections.

본 연구는 미생물의 배양을 통해 임상적으로 효과적인 air/water syringe의 소독법을 조사할 목적으로, 치과 병원에서 사용하는 10개의 AWS tip을 사용하였다. 실험군은 6개 군으로 나누어 실험을 3번씩 반복하여 180개의 샘플을 얻었다. 1군은 소독하지 않은 경우, 2군은 물에 적신 거즈로 큰 오염물만 제거한 경우, 3군은 78% 에탄올 스펀지로 10초간 소독한 경우, 4군은 78% 에탄올 스펀지로 20초간 소독한 경우, 5군은 1 : 100으로 희석한 High Level Disinfectant$^{(R)}$을 적신 스펀지로 20초간 소독한 경우, 6군은 가압증기멸균한 경우이다. 1군과 2군은 4, 5, 6군보다 유의하게 높은 미생물집락형성을 보였다(p < 0.05). 또한 4, 5, 6군은 미생물 집락이 나타나지 않았다. 에탄올과 High level Disinfectant$^{(R)}$를 사용하여 AWS tip을 20초 이상 소독하는 것은 가압멸균법이나 일회용 tip의 사용이 가능하지 않은 경우 교차감염 예방을 위해 유용한 방법이 될 수 있다.

Keywords

References

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