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首页> 美国卫生研究院文献>Materials >Tooth-Colored CAD/CAM Materials for Application in 3-Unit Fixed Dental Prostheses in the Molar Area: An Illustrated Clinical Comparison
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Tooth-Colored CAD/CAM Materials for Application in 3-Unit Fixed Dental Prostheses in the Molar Area: An Illustrated Clinical Comparison

机译：牙齿上色CAD / CAM材料在磨牙区域的3单元固定牙科假肢应用中的应用：插图临床比较

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The aim of this study was to compare the clinical properties of tooth-colored computer-aided design/computer-aided manufacturing (CAD/CAM) materials for the fabrication of a 3-unit fixed dental prostheses (FDPs) in the same clinical scenario. A 53-year-old female patient was supplied with a 3-unit FDP to replace a second premolar in the upper jaw. Restorations were fabricated from 3 mol%, 4 mol%, and 5 mol% yttrium oxide zirconia, zirconia with translucency gradient, indirect composite resin, polyetheretherketone (PEEK), and polyetherketoneketone (PEKK). Milling time, weight, and radiopacity were investigated. Esthetics were examined following the US Public Health Service criteria (USPHS). The milling time for zirconia was twice as high as for the indirect composite resin, PEEK, or PEKK. The latter materials had a weight of 2 g each, while zirconia restorations yielded 5 g. Zirconia presented intense radiopacity. PEEK and PEKK required veneering and an opaquer was applied to the PEKK framework. All FDPs showed acceptable esthetics. PEEK and PEKK restorations were featured by a grayish shimmering. A variety of CAD/CAM materials are available to fabricate 3-unit FDPs with esthetically acceptable results. In the esthetic zone, PEEK and PEKK require veneering and an opaquer might be applied. Milling time, weight, and radiopacity were relatively high for zirconia FDPs.
机译：本研究的目的是比较牙齿上色计算机辅助设计/计算机辅助制造（CAD / CAM）材料的临床特性，用于在相同的临床场景中制造3单元固定牙科假肢（FDP）。提供53岁的女性患者，提供3单元FDP，以更换上颌中的第二次磨牙。修复后由3摩尔％，4mol％和5摩尔％的氧化钇氧化锆，氧化锆，具有半透明梯度，间接复合树脂，聚醚醚酮（PEEK）和聚醚酮酮（PEKK）。研究了碾磨时间，体重和射线空间。在美国公共卫生服务标准（USPHS）之后审查了美学。氧化锆的研磨时间是间接复合树脂，PEEK或PEKK的两倍。后一种材料每种重量为2g，而氧化锆修复率为5克。氧化锆呈现出强烈的辐射空间。 PEEK和PEKK所需的肢体和透明度适用于PEKK框架。所有FDP都显示出可接受的美学。 PEEK和PEKK修复物由灰色的闪闪发光。各种CAD / CAM材料可用于制造3单元FDP，具有美观可接受的结果。在美学区，PEEK和PEKK需要塑料，可能会申请渗透。氧化锆FDP的铣削时间，重量和射线高度相对较高。

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