Effect of Acetic NaF Solution on the Corrosion Behavior of Stainless Steel Orthodontic Brackets
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概要
- 論文の詳細を見る
This study assessed the effect of acetic NaF solutions on stainless steel orthodontic brackets. Acetic acid was added to a 0.1% NaF solution to make two solutions, one with pH 3.5 and the other with pH 6. For the two different stainless steel brackets (Tomy, Dentaurum) used in this study, they had a similar elemental composition - except with Mo (molybdenum) in the Tomy bracket. The brackets were then immersed in the prepared test solutions for three days and their responses evaluated. In terms of hydrofluoric acid (HF) concentration, the 0.1%/pH 3.5 solution showed a high HF concentration at 227 ppm, while that of 0.1%/pH 6 solution was very low at 7ppm. In terms of color change and element release, only the Dentaurum brackets in 0.1%/pH 3.5 solution showed an appreciable color change (ΔE^*=4.0) and released a great amount of elements (Fe, Cr, Ni, Mn) after three days. Otherwise, regardless of pH value and product, only minor color change (ΔE^*<1.0) and negligible element release occurred. In terms of surface modification, no visible changes in surface morphology were observed in any product after immersion in test solutions.
- 日本歯科理工学会の論文
著者
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PARK Soo-Byung
Department of Orthodontics, College of Dentistry, Pusan National University
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SON Woo-Sung
Department of Orthodontics, College of Dentistry, Pusan National University
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KIM Hyung-Il
Department of Dental Materials, College of Dentistry and Medical Research Institute, Pusan National
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KWON Yong
Department of Dental Materials, College of Dentistry and Medical Research Institute, Pusan National
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Kim Hyung-il
Pusan National Univ. Busan Kor
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Kwon Yong
Pusan National Univ. Busan Kor
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Son Woo-sung
Research Institute Of Pharmaceutical Sciences College Of Pharmacy Seoul National University
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Son Woo-sung
Department Of Orthodontics College Of Dentistry Pusan National University
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Kwon Yong
Department Of Dental Materials College Of Dentistry And Medical Research Institute Pusan National Un
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Kim H‐i
Department Of Dental Materials College Of Dentistry Pusan National University
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Kim Hyung-il
Department Of Dental Materials College Of Dentistry And Medical Research Institute Pusan National Un
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Kim Hyung-il
Department Of Dental Materials College Of Dentistry Pusan University
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Park Soo-byung
Department Of Orthodontics College Of Dentistry Pusan National University
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JANG Hee-Song
Department of Orthodontics, College of Dentistry, Pusan National University
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Kwon Yong
Department Of Agricultural Biology Kyungpook National University
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Jang Hee-song
Department Of Orthodontics College Of Dentistry Pusan National University
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