著作: [金子 和之]/[横山 賢一]/[森山 啓司]/[淺岡 憲三]/Sakai Jun'ichi/Degradation in performance of orthodontic wires caused by hydrogen absorption during short-term immersion in 2.0% acidulated phosphate fluoride solution./[The Angle Orthodontist]
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種別 | 必須 | 学術論文(審査論文) | |||
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言語 | 必須 | 英語 | |||
招待 | 推奨 | ||||
審査 | 推奨 | Peer Review | |||
カテゴリ | 推奨 | ||||
共著種別 | 推奨 | ||||
学究種別 | 推奨 | ||||
組織 | 推奨 | ||||
著者 | 必須 | ||||
題名 | 必須 |
(英) Degradation in performance of orthodontic wires caused by hydrogen absorption during short-term immersion in 2.0% acidulated phosphate fluoride solution. |
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副題 | 任意 | ||||
要約 | 任意 |
(英) The purpose of this study was to investigate the degradation in performance of four major alloys of orthodontic wires, namely nickel-titanium, beta titanium, stainless steel, and cobalt-chromium-nickel, caused by hydrogen absorption during short-term immersion in an acid fluoride solutions. The hydrogen-related degradation of orthodontic wires after immersion in 2.0% acidulated phosphate fluoride solution at 37 degrees C for 60 minutes was evaluated by a tensile test, scanning electron microscope observation, and hydrogen thermal desorption analysis. Upon immersion, the tensile strengths of the nickel-titanium and beta titanium wires decreased. Particularly, the nickel-titanium wire fractured before yielding, and the fracture mode changed from ductile to brittle. The amounts of absorbed hydrogen in the nickel-titanium and beta titanium wires were 200 and 100 mass ppm, respectively. On the other hand, the tensile strengths of the stainless steel and cobalt-chromium-nickel wires were only slightly affected by immersion. The results of this study suggest that degradation in performance of orthodontic wires of titanium alloys occurs because of hydrogen absorption even after a short-term immersion in fluoride solutions. |
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キーワード | 推奨 |
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発行所 | 推奨 | ||||
誌名 | 必須 |
The Angle Orthodontist(Edward H. Angle Society of Orthodontia.)
(pISSN: 0003-3219, eISSN: 1945-7103)
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巻 | 必須 | 74 | |||
号 | 必須 | 4 | |||
頁 | 必須 | 487 495 | |||
都市 | 任意 | ||||
年月日 | 必須 | 2004年 8月 初日 | |||
URL | 任意 | ||||
DOI | 任意 | ||||
PMID | 任意 | 15387026 (→Scopusで検索) | |||
CRID | 任意 | ||||
WOS | 任意 | 000223430900009 | |||
Scopus | 任意 | ||||
評価値 | 任意 | ||||
被引用数 | 任意 | ||||
指導教員 | 推奨 | ||||
備考 | 任意 |
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