[基于下部运动轨迹的关键关器参数的计算方法]
1Center for Digital Dentistry, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Research Center of Engineering and Technology for Computerized Dentistry, Beijing 100081, China.
概括
从下运动数据计算关节元参数的新数学方法显示出开发国内记录系统的前景. 虽然它对一些参数如横向状垂体倾斜 (TCI) 一致,但对于状垂体倾斜 (SCI) 和切口导向需要进一步细化.
科学领域:
- 生物机械工程 生物机械工程
- 牙科机械 牙科机械
- 计算解剖学的计算解剖学
背景情况:
- 精确测量下部运动对于牙假体和正牙非常重要.
- 现有的外国系统提供参考值,但开发国内系统需要验证的算法.
- 数学建模提供了一种途径,可以从轨迹数据中导出关键的关节元参数.
研究的目的:
- 开发和验证一种数学方法,利用下部运动轨迹数据计算关节器参数.
- 将这种新方法的结果与商业系统 (JMA Optic) 进行比较.
- 为国内下部运动记录系统建立算法基础.
主要方法:
- 使用JMA光学系统从20名健康志愿者收集了3D下部运动数据.
- 建立了一个统一的坐标系统,整合了面数据.
- 计算的参数包括斜腰骨倾斜 (SCI),横向骨倾斜 (TCI),立即侧移 (ISS),切口指导和使用各种参考点的狗指导.
- 将计算值与JMA Optic的参考值进行比较.
主要成果:
- 数学方法显示了可接受的一致性与JMA光学系统的TCI,国际空间站和狗指导.
- 对于SCI和切口指导计算,观察到显著的差异和不一致.
- 参考点的选择对计算的参数值产生了重大影响.
- 经验轴点显示了TCI计算的最佳一致性.
结论:
- 拟议的数学方法提供了一个可追溯的计算途径,用于关节器参数计算.
- 该方法的准确性因具体参数而异,TCI,ISS和狗指导显示可接受的协议.
- 参考点的选择对于准确的参数导出至关重要.
- 这种方法为未来的国内系统中精确,个性化的关节器设置提供了理论基础.
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