3D Morphological Measurements of Dental Casts with Occlusal Relationship using Microfocus X-ray CT
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概要
- 論文の詳細を見る
In the diagnosis of dental occlusion, it is necessary to quantitatively measure interocclusal contacts and transfer them to a computer model. In this aspect, three-dimensional computer models of upper and lower dental casts play a significant role. In this study, we proposed a new method to measure occlusal interaction by using a microfocus X-ray CT technique. Measurement accuracy was determined as ±0.03 mm in comparison with a coordinate measuring machine. A superimposition procedure for two sets of three-dimensional dental cast models was also established. Using the same dental cast, the standard deviation between the two sets of models was ±0.015 mm - which was denned as measurement precision. Between an optical laser scanner and the microfocus X-ray CT system, the standard deviation measured between the two models was ±0.05 mm. Data were acquired when upper and lower dental casts mounted on the bite impression were scanned, and then occlusal interaction, contacts, and distance distribution between the casts were visualized by a colored map on the cast models. Within the limitations of the current study, it was successfully demonstrated that microfocus X-ray CT was well poised for quantitative measurement of occlusal interaction.
- 日本歯科理工学会の論文
著者
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KAMEGAWA Masayuki
Department of Medical Simulation Engineering, Research Center for Nano Medical Engineering, Institut
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NAKAMURA Masayuki
Department of Medical Simulation Engineering, Research Center for Nano Medical Engineering, Institut
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TSUTSUMI Sadami
School of Dentistry, Nihon University
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TSUTSUMI Sadami
Department of Medical Simulation Engineering, Institute for Frontier Medical Science, Kyoto Universi
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Tsutsumi Sadami
School Of Dentistry Nihon University
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Kamegawa Masayuki
Department Of Medical Simulation Engineering Research Center For Nano Medical Engineering Institute
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Tsutsumi Sadami
Department Of Medical Simulation Engineering Institute For Frontier Medical Science Kyoto University
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Nakamura Masayuki
Department Of Medical Simulation Engineering Research Center For Nano Medical Engineering Institute
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Nakamura Masayuki
Department Of Chemistry Faculty And Graduate School Of Sciences Kyushu University
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Nakamura Masayuki
Department Of Animal Science Faculty Of Agriculture Tohoku University
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