수증기 첨가 상온 대기압 플라즈마의 미백 효과
Tooth bleaching effect by nonthermal atmospheric pressure plasma with humid condition
임수연, 권재성, 김광만, 김경남,
소속 상세정보
임수연 ( Im Su-Yeon ) - 연세대학교 치과대학 치과생체재료공학교실
권재성 ( Kwon Jae-Sung ) - 연세대학교 치과대학 치과생체재료공학교실
김광만 ( Kim Kwang-Man ) - 연세대학교 치과대학 치과생체재료공학교실
김경남 ( Kim Kyoung-Nam ) - 연세대학교 치과대학 치과생체재료공학교실
KMID : 1035320150420020157
Abstract
The purpose of this study was to evaluate the tooth bleaching effect by the use of nonthermal atmospheric pressure plasma supplied by humid air(humid air plasma) along with 5 %, 15 %, and 35 % of hydrogen peroxide(HP). A total number of 90 stained teeth were divided into 9 groups(n=10) and treated in different bleaching conditions: only HP, HP with air plasma, and HP with humid air plasma. Color changes(ΔE* ) were measured after three consecutive bleaching using spectrophotometer and National Bureau of Standards systems. One-way ANOVA combined with post-hoc test using Tukey’s method was performed for the statistical analysis. The results showed that final ΔE* values increased significantly in all groups(p<0.05), indicating the effective tooth bleaching. The most significant color changes were noted on samples treated with 15 % HP humid air plasma, 35 % HP air plasma and 35 % HP humid air plasma(p<0.05), but there were no significant differences amongst them(p>0.05). This study suggested that tooth treated by HP with humid air plasma is more effective for tooth bleaching compared to only HP and HP with air plasma. Lastly, it is concluded that using 15 % HP in conjunction with humid air plasma is more safe compared to simply using 35 % HP.
키워드
Tooth bleaching; Hydrogen peroxide;Nonthermal atmospheric pressure plasma; Humidity
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