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首页> 外文期刊>Journal of Biomechanics >Design of a custom angled abutment for dental implants using computer-aided design and nonlinear finite element analysis.
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Design of a custom angled abutment for dental implants using computer-aided design and nonlinear finite element analysis.

机译：使用计算机辅助设计和非线性有限元分析设计用于牙科植入物的定制倾斜基台。

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摘要

Computer-aided design/computer-aided manufacturing (CAD/CAM) custom abutments have been attracting more and more attention due to their advantages of accuracy fit and esthetic emergence profile. However, the CAD key technology for custom abutments has been seldom studied as well as their biomechanical behavior. This paper explored a novel method to design a CAD/CAM custom angled abutment, evaluated the biomechanical performance of the whole system and compared the difference between the custom and the conventional abutment through 3D nonlinear finite element analysis (FEA). Firstly, the digital data of the dental casts at the healing abutment level was acquired by optical scanner. Thus the position of the healing abutment and the implant can be determined by CAD technology. The custom angled abutment was then designed according to the need of restoration and esthetics with CAD software. The described system can eliminate wax and cast, create an esthetic anatomical emergence profile and provide a satisfactory angle correction. Simulation results indicate that there was no distinct difference in the stress distribution and magnitude of implant-bone interface and screw using the custom or the conventional angled abutment.
机译：计算机辅助设计/计算机辅助制造（CAD / CAM）定制基台因其精确配合和美观的外形而备受关注。但是，很少研究定制基台的CAD关键技术及其生物力学性能。本文探索了一种新颖的设计CAD / CAM定制基台的方法，评估了整个系统的生物力学性能，并通过3D非线性有限元分析（FEA）比较了定制基台和常规基台之间的差异。首先，通过光学扫描仪获取愈合基台水平的牙模的数字数据。因此，可以通过CAD技术确定愈合基台和植入物的位置。然后，根据修复和美观的需要，使用CAD软件设计定制的倾斜基台。所描述的系统可以消除蜡和铸模，创建美学的解剖结构出现轮廓并提供令人满意的角度校正。仿真结果表明，使用常规或常规倾斜基台时，种植体-骨界面和螺钉的应力分布和强度没有明显差异。

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