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The Effectiveness of Clinical Sterilization Methods in Dental Air/water Syringes

Seyoung Shin 1,  Yeonmi Yang ORD ID 2,  김미아 3,  Jaegon Kim ORD ID 2,  Byeong Ju Baik 2

1전북대학교 치의학 전문대학원 소아치과학교실 및 구강생체과학연구소
2전북대학교
3전북대학교 치과대학 소아치과학교실 및 구강생체과학연구소

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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􀋓 (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􀋓 proves to be a useful and practical method for preventing cross-infections.

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