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Comparison of Conventional and New-generation Nickel-Titanium Files in Regard to Their Physical Properties
http://hdl.handle.net/10069/34920
http://hdl.handle.net/10069/349205c66ad80-b158-4fd2-b2f9-af80902174c3
名前 / ファイル | ライセンス | アクション |
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JouEnd40_1824.pdf (793.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-12-01 | |||||
タイトル | ||||||
タイトル | Comparison of Conventional and New-generation Nickel-Titanium Files in Regard to Their Physical Properties | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cyclic fatigue resistance test | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | differential scanning calorimetry | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | heat treatment | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | nickel-titanium files | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | scanning electron microscopy | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Tsujimoto, Masaki
× Tsujimoto, Masaki× Irifune, Yuu× Tsujimoto, Yasuhisa× Yamada, Shizuka× Watanabe, Ikuya× Hayashi, Yoshihiko |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Introduction This study investigated the surface, fractured structure, and physicochemical properties related to cyclic fatigue in various nickel-titanium (NiTi) files. Methods Among a total of 10 groups of NiTi files, conventional NiTi files (ProFile [Dentsply Maillefer, Ballaigues, Switzerland] and K3 [SybronEndo, Orange, CA]) and new-generation NiTi files (ProFile Vortex [PV; Tulsa Dental Specialties, Tulsa, OK], Vortex Blue [VB; Tulsa Dental Specialties], and K3 XF [XF; SybronEndo, Orange, CA]) with the same tip diameter (ISO size 25) and 2 types of taper (0.04 and 0.06) were used in this study. Scanning electron microscopy of the file surface structure, differential scanning calorimetry, and cyclic fatigue resistance tests were conducted. Results Many mechanical grooves were recognized on the file surface. The surface in the ProFile group was extremely smooth compared with that observed for the other files. Many shallow hollows besides mechanical grooves were noted on the surface in the XF group. A smooth curve was observed in the ProFile, K3, and PV groups. Defined peaks in differential scanning calorimetry were observed in the VB and XF groups. The 0.04 taper files exhibited a statistically higher number of cycles to fracture than the 0.06 taper files in all groups (P <.05). Cracks along the mechanical grooves were observed in the NiTi files, with the exception of the XF group. The start of cracking was detected at U-shape sites in the ProFile group, the cutting edge in the PV and VB groups, and radial islands in the K3 and XF groups. Conclusions The present findings suggest that new-generation NiTi files are not necessarily improved compared with conventional files. |
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書誌情報 |
Journal of Endodontics 巻 40, 号 11, p. 1824-1829, 発行日 2014-11 |
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出版者 | ||||||
出版者 | Elsevier Inc. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00992399 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.joen.2014.06.009 | |||||
権利 | ||||||
権利情報 | c 2014 American Association of Endodontists. Published by Elsevier Inc. | |||||
権利 | ||||||
権利情報 | NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Endodontics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Endodontics, 40, 11, (2014) | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Journal of Endodontics, 40(11), pp.1824-1829; 2014 |