Effect of Fluoride Released from Fluoride-containing Dental Restoratives on NiTi Orthodontic Wires
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概要
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The present study investigated the effect of fluoride released from dental restoratives on orthodontic NiTi wires. Five different restoratives (four fluoride-containing and one non-fluoride-containing) and four different NiTi wires were examined in this study. The pH of artificial saliva (AS) was adjusted to 2.5 and 6. Content of released fluoride was determined daily for 10 days. The morphology of wires was observed using a scanning electron microscope. After immersion for 10 days, the initial microhardness of the wires decreased by 0.3-5.6% depending on the test solution. Dyract AP (DA) and F2000 (F2) (compomers) released significantly more fluoride than the other resin products (composite resins) regardless of the test solution. In pH 2.5 solution, both DA and F2 released 40-45ppm/day fluoride for five to six days. As for the wires in contact, they did not show any visible modification in surface morphology. Therefore, despite the released fluoride, wires in contact with the fluoride-containing restoratives were not damaged regardless of the pH value of test solution.
- 日本歯科理工学会の論文
著者
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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
Department Of Dental Materials College Of Dentistry And Medical Research Institute Pusan National Un
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Jang Chang-min
Department Of Dental Materials College Of Dentistry And Medical Research Institute Pusan National Un
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Jang Jae-hyeok
Department Of Dental Materials College Of Dentistry And Medical Research Institute Pusan National Un
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Kim Tae-hyong
Department Of Dental Materials College Of Dentistry And Medical Research Institute Pusan National Un
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Park Joo-hee
Department Of Dental Materials College Of Dentistry And Medical Research Institute Pusan National Un
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Kwon Yong
Department Of Agricultural Biology Kyungpook 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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