Correlation between Accuracy of Crowns Fabricated Using CAD/CAM and Elastic Deformation of CAD/CAM Materials
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概要
- 論文の詳細を見る
Full crowns were fabricated from three different materials (titanium, ceramic, and resin composite) at different rest diameters using a dental CAD/CAM system, and then their marginal discrepancy measured. The deflection of cylindrical specimens at 500 gf was measured using the same materials and diameters as for the accuracy measurement. Marginal discrepancy decreased as rest diameter increased, and at the same rest diameter the titanium crown had lower marginal discrepancy than ceramic and composite crowns. A significant correlation was found between marginal discrepancy of the crowns and deflection of the materials. This correlation was aptly expressed in the regression equation, MG = 4.54DF + 53.9, where MG represented marginal discrepancy and DF represented deflection. This equation can be used as a good measure for new materials which have different modulus of elasticity.
- 日本歯科理工学会の論文
著者
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OGURA Hideo
Department of Dental Materials Science, School of Dentistry at Niigata, The Nippon Dental University
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GOTO Shin-ichi
Department of Chemistry, Niigata University
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Ogura Hideo
Department Of Dental Materials Science
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Goto Shin-ichi
Department Of Dental Materials Science School Of Dentistry At Niigata The Nippon Dental University
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Goto Shin-ichi
Department Of Chemistry Niigata University
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YARA Atsushi
Department of Dental Materials Science, School of Dentistry at Niigata, The Nippon Dental University
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Yara Atsushi
Department Of Dental Materials Science School Of Dentistry At Niigata The Nippon Dental University
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