可拆卸部分假牙框架的计算机辅助设计系统的关键技术
Guidian Ma1, Xiaotong Jiang2, Ning Dai1
1College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China.
PloS one
|February 3, 2026
概括
本研究介绍了一种计算机辅助设计 (CAD) 系统,用于创建可拆卸部分假牙 (RPD) 框架. 该系统从数字牙科模型中高效地生成3D打印RPD设计,确保准确性和可靠性.
科学领域:
- 生物材料工程 生物材料工程
- 牙科技术 牙科技术
- 计算机辅助设计 计算机辅助设计
背景情况:
- 为可拆卸部分假牙 (RPD) 框架开发准确和高效的计算机辅助设计 (CAD) 系统对于解决牙缺陷至关重要.
- 现有的方法在精度,效率和组件的无集成方面经常面临挑战.
研究的目的:
- 介绍一种用于设计RPD框架的新型CAD系统.
- 利用先进的建模技术来准确和高效地生成RPD框架.
- 通过商业CAD解决方案验证系统的性能.
主要方法:
- 使用光学扫描来获得数字化牙科模型.
- 在2D参数化域中通过符合性映射实现了spline曲线编辑.
- 采用代近似与适应性网格简化,用于精确的网格抵消.
- 集成纹理映射用于假牙部件的交互建模.
- 应用了一种增强的布尔算法来实现无组件融合.
主要成果:
- 该CAD系统成功生成了适合3D打印的RPD框架模型.
- 该系统在spline曲线编辑和网格偏移方面表现出高精度和效率.
- 组件融合导致了各种零件的无和自然整合.
- 临床评估证实性能与先进的商用CAD系统相比.
结论:
- 开发的CAD系统为设计RPD框架提供了可靠和高效的解决方案.
- 该系统成功地解决了数字牙假肢的精度和组件集成方面的挑战.
- 完成了超过30,000个临床设计,满足了高标准并证明了临床适用性.
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