Comparison of the Marginal Fit of Cobalt-Chromium Metal-Ceramic Crowns Fabricated by CAD/CAM Techniques and Conventional Methods at Three Production Stages

Real-Voltas Francisco; Romano-Cardozo Elisabeth; Figueras-Alvarez Oscar; Brufau-de Barbaera Magi; Cabratosa-Termes Josep

首页> 外文期刊>The International journal of prosthodontics >Comparison of the Marginal Fit of Cobalt-Chromium Metal-Ceramic Crowns Fabricated by CAD/CAM Techniques and Conventional Methods at Three Production Stages

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Comparison of the Marginal Fit of Cobalt-Chromium Metal-Ceramic Crowns Fabricated by CAD/CAM Techniques and Conventional Methods at Three Production Stages

机译：CAD / CAM技术制造的钴 - 铬金属陶瓷冠的边际拟合及三种生产阶段常规方法的比较

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Purpose: The aim of this study was to compare the marginal fit of cobalt-chromium crowns fabricated using conventional casts and computer-aided design/computer-assisted manufacturing (CAD/CAM) techniques at three stages of production: metal coping, after porcelain firing, and after cementation. Materials and Methods: A total of 80 metal-ceramic crowns were fabricated using four different techniques: lost wax casting, milling, laser sintering, and milling of a presintered metal block. Marginal fit was measured at each manufacturing stage. Results: The porcelain firing stage improved marginal fit. CAD/CAM techniques resulted in better marginal fit than did conventional casting techniques at all manufacturing stages. Conclusion: CAD/CAM techniques improve marginal fit.

机译：目的：本研究的目的是将使用常规铸件和计算机辅助设计/计算机辅助制造（CAD / CAM）技术的钴 - 铬冠的边缘拟合进行比较，在生产的三个阶段：金属应对，瓷器烧制后，和胶泥后。材料和方法：使用四种不同的技术制造总共80种金属陶瓷冠：损失蜡铸造，铣削，激光烧结和碾磨预烧结金属块。在每个制造阶段测量边缘配合。结果：瓷器烧制阶段改善了边际合适。 CAD / CAM技术导致更好的边缘合适，而不是所有制造阶段的常规铸造技术。结论：CAD / CAM技术改善了边缘贴合。

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来源
《The International journal of prosthodontics》 |2017年第3期|共2页
作者
Real-Voltas Francisco; Romano-Cardozo Elisabeth; Figueras-Alvarez Oscar; Brufau-de Barbaera Magi; Cabratosa-Termes Josep;
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Univ Int Catalunya Dept Prosthodont Sch Dent Barcelona Spain;

Univ Int Catalunya Dept Prosthodont Sch Dent Barcelona Spain;

Univ Int Catalunya Dept Prosthodont Sch Dent Barcelona Spain;

Univ Int Catalunya Dept Prosthodont Sch Dent Barcelona Spain;

Univ Int Catalunya Dept Prosthodont Sch Dent Barcelona Spain;

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正文语种 eng
中图分类口腔科学;
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Comparison of the Marginal Fit of Cobalt-Chromium Metal-Ceramic Crowns Fabricated by CAD/CAM Techniques and Conventional Methods at Three Production Stages

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