Temperature-dependence of the Mechanical Properties of FRP Orthodontic Wire
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概要
- 論文の詳細を見る
The temperature-dependence of the mechanical properties of a new esthetic orthodontic wire with fiber-reinforced plastic (FRP) structure was investigated. The new FRP wire, fabricated by a hot drawing method, is 0.5 mm in diameter and has a multiple fiber structure composed of biocompatible Ca0-P_2O_5-SiO_2-Al_2O_3 glass fibers of 20μm in diameter and a polymethyl methacrylate matrix. The flexural load at a deflection of 1 mm and Young's modulus at 24, 37, and 50℃ under wet conditions showed similar fiber fraction dependence to those under dry conditions for a fiber fraction of 40-51%. The flexural load and Young's modulus tended to decrease slightly with increases in temperature. This tendency was larger for the lower fiber fraction. However, the difference in flexural load for a temperature difference of between 24℃ and 50℃ was at most 10 gf. This is negligibly small, and a constant orthodontic force regarding temperature change would be advantageous from a clinical point of view.
- 日本歯科理工学会の論文
著者
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Watari Fumio
Hokkaido Univ. Sapporo Jpn
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Watari Fumio
Department Of Oral Health Science Graduate School Of Dental Medicine Hokkaido University
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KOBAYASHI Masahiro
Department of Hepatology, Toranomon Hospital
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Watari Fumio
Department Of Applied Science Faculty Of Engineering
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NAKAMURA Shinji
Department of Electrical Communications, Tohoku University
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Watari Fumio
Department Of Dental Materials And Engineering School Of Dentistry Hokkaido University
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IMAI Tohru
Department of Orthodontics, School of Dentistry, Hokkaido University
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Kobayashi Masahiro
Department Of Gastroenterology Toranomon Hospital
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Imai T
Department Of Orthodontics School Of Dentistry Hokkaido University
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Imai Tohru
Department Of Orthodontics
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YAMAGATA Shuichi
Department of Orthodontics, School of Dentistry, Hokkaido University
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NAGAYAMA Kazunori
Department of Orthodontics, School of Dentistry, Hokkaido University
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TOYOIZUMI Hiroshi
Department of Orthodontics, School of Dentistry, Hokkaido University
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UGA Masaru
Department of Orthodontics, School of Dentistry, Hokkaido University
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Uga Masaru
Department Of Orthodontics School Of Dentistry Hokkaido University
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Nakamura S
Department Of Orthodontics School Of Dentistry Hokkaido University
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Nakamura Shinji
Department Of Applied Chemistry Graduate School Of Engineering Nagoya University
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Nagayama Kazunori
Department Of Orthodontics School Of Dentistry Hokkaido University
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Toyoizumi Hiroshi
Department Of Orthodontics School Of Dentistry Hokkaido University
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Yamagata Shuichi
Department Of Orthodontics School Of Dentistry Hokkaido University
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Nakamura Shinji
Department Of Anatomy And Organ Technology Shinshu University School Of Medicine
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Kobayashi Masahiro
Department Of Chest Surgery Kitakyushu City Yahata Hospital
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Kobayashi M
Chiba Inst. Technol. Chiba Jpn
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WATARI Fumio
Department of Dental Materials and Engineering, School of Dentistry, Hokkaido University
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