Corrosion-related Changes on Ti-based Orthodontic Brackets in Acetic NaF Solutions : Surface Morphology, Microhardness, and Element Release
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概要
- 論文の詳細を見る
This study sought to investigate the effects of acetic NaF solutions on titanium and Ti alloy brackets. To this end, two different brackets were immersed in various NaF-containing solutions for three days. The Equilibrium Ti (EQ) bracket was composed of Ti only, whereas the Ortho 2 (OR) bracket was composed of Ti (base) and Ti-6Al-4V (wings). Brackets that were immersed in the acetic NaF solution of pH 3.5 yielded no reliable surface microhardness values due to corrosion. In other test solutions, however, there was minimal reduction (at best 3%) in microhardness. Further on microhardness, the values of the OR bracket at the base and wings were different. On the release of elements, it was significant only in the acetic NaF solution of pH 3.5. However, the release of Al (6.11±0.93 ppm) and V (1.16±0.40 ppm) in this solution was low. In conclusion, an acetic NaF solution of low pH could damage Ti-based orthodontic brackets.
- 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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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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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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Kang Eun-hee
Department Of Orthodontics College Of Dentistry Pusan National University
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Park Soo-byung
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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