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다양한 고속 공기터빈 핸드피스에 장착 된 Zero Suck-back Control Box (ZSCB)의외부 오염물질 흡인 방지 효과

Other Titles
 Effects of Zero Suck-back Control Box (ZSCB) on prevention of external contaminants suction by various handpieces 
 문정미  ;  김양수  ;  김경남  ;  권재성 
 Korean Journal of Dental Materials(대한치과재료학회지), Vol.49(4) : 121-130, 2022-12 
Journal Title
Korean Journal of Dental Materials(대한치과재료학회지)
Issue Date
Handpiece ; Suck-back ; Cross infection ; Contamination
The dental high-speed air turbine handpiece operates by rotating the impeller inside the handpiece with compressed air.
However, even if the inflow of the powered compressed air is stopped, the impeller rotates due to inertial rotation and createsnegative pressure inside the handpiece (backflow suction, commonly known as suck-back). Organic matter and microorganismsin the patient’s oral cavity flow into not only the inside of the handpiece but also other parts connected to the handpiece,causing contamination.
In this study, the Zero Suck-back Control Box (ZSCB) device, which was developed to prevent the reverse suction ofthe handpiece, was applied to five different handpieces and tested. After driving the five different handpieces with or withoutZSCB in the air, the presence or absence of suck-back was observed when they were stopped. In addition, when the handpiecewas driven using the fluorescent solution to imitate the oral environment, the fluorescent solution flowing into the insidedue to the reverse suction phenomenon was observed. It was evident that operating different handpieces with the ZSCBis effective in preventing the inhalation of external contaminants. In two different experiments conducted in this study, theuse of ZSCB was shown to be effective in preventing regurgitation in both atmospheric and immersion conditions.
Full Text
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
Yonsei Authors
Kwon, Jae-Sung(권재성) ORCID logo https://orcid.org/0000-0001-9803-7730
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