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Homogeneous and heterogeneous end-to-end joints (12 mm long each) were made by Nd:YAG laser welding. Two types of welding methods were used: two-point welding and four-point welding. Nonwelded wires were also used as a control. Deflection load (N) was measured by conducting the three-point bending test. The data (n = 5) were statistically analyzed using analysis of variance/Tukey test (P \u003c .05).\nResults: The deflection loads for control wires measured were as follows: SS: 21.7 ± 0.8 N; Co-Cr-Ni: 20.0 ± 0.3 N; β-Ti: 13.9 ± 1.3 N; and Ni-Ti: 6.6 ± 0.4 N. All of the homogeneously welded specimens showed lower deflection loads compared to corresponding control wires and exhibited higher deflection loads compared to heterogeneously welded combinations. For homogeneous combinations, Co-Cr-Ni/Co-Cr-Ni showed a significantly (P \u003c .05) higher deflection load than those of the remaining homogeneously welded groups. In heterogeneous combinations, SS/Co-Cr-Ni and β-Ti/Ni-Ti showed higher deflection loads than those of the remaining heterogeneously welded combinations (significantly higher for SS/Co-Cr-Ni). Significance (P \u003c .01) was shown for the interaction between the two factors (materials combination and welding method). 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Deflection load characteristics of laser-welded orthodontic wires
http://hdl.handle.net/10069/29910
http://hdl.handle.net/10069/2991071700c78-1839-4dc3-a7d4-f129b5c13a1c
名前 / ファイル | ライセンス | アクション |
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AnOrtho82_699.pdf (557.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2012-11-30 | |||||
タイトル | ||||||
タイトル | Deflection load characteristics of laser-welded orthodontic wires | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Orthodontics | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Wire | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Titanium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Laser | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Welding | |||||
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 |
Watanabe, Etsuko
× Watanabe, Etsuko× Stigall, Garrett× Elshahawy, Waleed× Watanabe, Ikuya |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Objective: To compare the deflection load characteristics of homogeneous and heterogeneous joints made by laser welding using various types of orthodontic wires. Materials and Methods: Four kinds of straight orthodontic rectangular wires (0.017 inch × 0.025 inch) were used: stainless-steel (SS), cobalt-chromium-nickel (Co-Cr-Ni), beta-titanium alloy (β-Ti), and nickel-titanium (Ni-Ti). Homogeneous and heterogeneous end-to-end joints (12 mm long each) were made by Nd:YAG laser welding. Two types of welding methods were used: two-point welding and four-point welding. Nonwelded wires were also used as a control. Deflection load (N) was measured by conducting the three-point bending test. The data (n = 5) were statistically analyzed using analysis of variance/Tukey test (P < .05). Results: The deflection loads for control wires measured were as follows: SS: 21.7 ± 0.8 N; Co-Cr-Ni: 20.0 ± 0.3 N; β-Ti: 13.9 ± 1.3 N; and Ni-Ti: 6.6 ± 0.4 N. All of the homogeneously welded specimens showed lower deflection loads compared to corresponding control wires and exhibited higher deflection loads compared to heterogeneously welded combinations. For homogeneous combinations, Co-Cr-Ni/Co-Cr-Ni showed a significantly (P < .05) higher deflection load than those of the remaining homogeneously welded groups. In heterogeneous combinations, SS/Co-Cr-Ni and β-Ti/Ni-Ti showed higher deflection loads than those of the remaining heterogeneously welded combinations (significantly higher for SS/Co-Cr-Ni). Significance (P < .01) was shown for the interaction between the two factors (materials combination and welding method). However, no significant difference in deflection load was found between four-point and two-point welding in each homogeneous or heterogeneous combination. Conclusion: Heterogeneously laser-welded SS/Co-Cr-Ni and β-Ti/Ni-Ti wires provide a deflection load that is comparable to that of homogeneously welded orthodontic wires. |
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書誌情報 |
The Angle Orthodontist 巻 82, 号 4, p. 698-702, 発行日 2012-07 |
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出版者 | ||||||
出版者 | E H Angle Orthodontists Research & Education Foundation, Inc. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00033219 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00525451 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.2319/061411-393.1 | |||||
権利 | ||||||
権利情報 | © 2012 by The EH Angle Education and Research Foundation, Inc. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Angle Orthodontist, 82(4), pp.698-702; 2012 |