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Effect of acidic fluoride solution on β titanium alloy wire
Author(s) -
Kwon Yong Hoon,
Seol HyoJoung,
Kim HyungIl,
Hwang KiJu,
Lee SangGeul,
Kim KyoHan
Publication year - 2005
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.30212
Subject(s) - alloy , dimple , fluoride , materials science , ultimate tensile strength , titanium alloy , immersion (mathematics) , composite material , titanium , metallurgy , chemistry , inorganic chemistry , mathematics , pure mathematics
The interaction between acidic fluoride solution and β titanium alloy was investigated to explore the changes that occur in β titanium alloy by fluoride‐containing acetic acid solutions. For this, alloy crystal structure, tensile strength, and elements released from the alloy wires were determined using four solutions (0.05%/pH 6, 0.05%/pH 4, 0.2%/pH 6, and 0.2%/pH 4) for 1 or 3 days. The immersed wire did not form any identifiable new crystal structure compared with the as‐received wire. The tensile strength of the immersed wires was significantly reduced compared to the as‐received wires in the test solutions if the period of immersion increased from as‐received to 3 days. The fractured area of the immersed wire was reduced compared to the as‐received one. The dimple pattern at the inner part and a cup–cone morphology at the outer part of the fractured wires were similar in both as‐received and immersed wires. After a 3‐day immersion, the amount of the released Ti and Mo has much increased for higher NaF concentration and lower pH value. During the long‐period orthodontic treatment, both patient and clinical doctor should carefully use the fluoride‐containing products to minimize unexpected damage on orthodontic wires. © 2005 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater