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首页> 美国卫生研究院文献>Frontiers in Veterinary Science >Retrospective Study of 18 Titanium Alloy Crowns Produced by Computer-Aided Design and Manufacturing in Dogs
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Retrospective Study of 18 Titanium Alloy Crowns Produced by Computer-Aided Design and Manufacturing in Dogs

机译：计算机辅助设计与制造犬用钛合金18冠的回顾性研究

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Computer-aided design (CAD) and computer-aided manufacturing (CAM) technology is routinely used in various fields of human dentistry, particularly prosthodontics. Reverse engineering and additive manufacturing allow the technician to create an easier, faster and more accurate restoration, with a natural design and adequate strength. Eighteen titanium alloy full crowns were produced for canine teeth of 7 working dogs using CAD/CAM technology (3D BioCare, Nobel Biocare). Reasons for crown therapy included abrasion, enamel infraction, and crown fracture. Crown preparation was routinely performed, and impressions were delivered to the laboratory where digital impressions were performed with a lab scanner. Using 3D dental design software, the metal crown was designed and sent for manufacture. Each prosthodontic crown was then carved from a solid titanium alloy block to obtain the final crown. All prosthodontic crowns were an adequate fit, and cementation was routinely performed. Crowns were lost from 2 canine teeth during the dogs' normal working activity, in one case, for 2 times. In all cases, replicas were requested. In the first case, the second cementation was successful. In the second case, the second crown was again lost and only the third cementation was successful. Follow up of all cases range from 12 to 62 months. Mean survival time for the crowns was 58.0 months. Here, CAD/CAM technology is shown to be a useful tool for manufacturing accurate prosthodontic crowns for veterinary patients. Moreover, CAD/CAM enables the production of prosthodontic crown replicas in a very short time and at relatively low cost compared to traditional methods, consequently eliminating the need for at least one anesthetic procedure in the incidence of crown cementation failure.
机译：计算机辅助设计（CAD）和计算机辅助制造（CAM）技术通常用于人类牙科的各个领域，尤其是修复牙齿。逆向工程和增材制造使技术人员能够以自然的设计和足够的强度创建更轻松，更快，更准确的修复体。使用CAD / CAM技术（3D BioCare，Nobel Biocare）为7只工作犬的犬齿生产了18个钛合金全冠。进行冠冕治疗的原因包括磨损，牙釉质破裂和冠状骨折。定期进行牙冠准备工作，然后将印模运送到实验室，在此实验室中使用实验室扫描仪进行数字印模。使用3D牙科设计软件，设计并发送了金属冠以进行制造。然后，从坚固的钛合金块上雕刻出每个义齿冠，以获得最终的冠。所有假牙牙冠均合适，并常规进行胶结。在犬的正常工作过程中，从2条犬齿上掉了冠，其中1次是2次。在所有情况下，都要求提供副本。在第一种情况下，第二次固井成功。在第二种情况下，第二个牙冠再次丢失，只有第三个骨水泥成功。所有病例的随访时间为12到62个月。牙冠的平均生存时间为58.0个月。在此，CAD / CAM技术被证明是为兽医患者制造准确的修复牙齿冠的有用工具。此外，与传统方法相比，CAD / CAM能够在很短的时间内以相对较低的成本生产修复牙齿的冠状复制品，因此消除了在冠状骨胶合失败发生率中至少需要使用一种麻醉方法的情况。

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