Bone Resorption Rate of Moved and Fixed Teeth during Alveolar Bone Remodeling by Orthodontic Treatment
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概要
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Orthodontic treatment is based on the remodeling of the alveolar bone in response to externally applied orthodontic force to a tooth. The rate of bone resorption is, therefore, one of the essential factors for understanding tooth movement during orthodontic treatment. There is the basic concept of differential force in orthodontics that the application of an optimal force enables the canine to be moved without moving the molar that is used as an anchor for retracting the canine. In this paper, the resorption rates of the alveolar bone around the molar and the canine were estimated from the clinical measurements of tooth movement and the stress analyses of tooth roots using a 3-D finite element model. The model consisted of an orthodontic spring, the canine, the second premolar, and the first and second molars. The bone resorption rate to a unit stress at the molar was found to be about 0.5 micron / (kPa・day) and almost the same as that of the canine. This result suggests that the concept of differential force can be explained simply by differences in the geometry of the roots of moved and fixed teeth.
- 一般社団法人日本機械学会の論文
- 1999-09-15
著者
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NAKAMURA Shinji
Department of Electrical Communications, Tohoku University
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MORIKAWA Hajime
Department of Obstetrics and Gynecology, Nara Medical University
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Nishihira Morimasa
Division Of Biomedical System Engineering Graduate School Of Engineering Hokkaido University
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森川 一
旭川高専
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ISHIKAWA Hiroyuki
Department of Parasitology and Immunology, The University of Tokushima, School of Medicine
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Satoh Y
Department Of Orthodontics School Of Dentistry Hokkaido University
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SATOH Yoshiaki
Department of Gastroenterology, Jichi Medical School
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Morikawa Hajime
Department Of Control And Information Engineering Asahikawa National College Of Technology
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Nakamura Shinji
Department Of Applied Chemistry Graduate School Of Engineering Nagoya University
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YAMANAMI Seiki
Division of Biomedical System Engineering, Graduate School of Engineering, Hokkaido University
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YAMAMOTO Katsuyuki
Division of Biomedical System Engineering, Graduate School of Engineering, Hokkaido University
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Yamamoto Katsuyuki
Division Of Biomedical System Engineering Graduate School Of Engineering Hokkaido University
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Yamanami Seiki
Division Of Biomedical System Engineering Graduate School Of Engineering Hokkaido University
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Nakamura Shinji
Department Of Anatomy And Organ Technology Shinshu University School Of Medicine
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Ishikawa Hiroyuki
Department Of Chemistry Faculty Of Science And Engineering Waseda University
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Ishikawa Hiroyuki
Department Of Orthodontics School Of Dentistry Hokkaido University
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森川 一
旭川校行高等専門学校
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