基于下运动轨迹和具有不同参数的虚拟关节器的动态闭塞调整的比较研究
Meiqi Yu1, Ma Liya2, Jiacheng Wu1
1State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Dental Technology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
Journal of dentistry
|December 17, 2025
概括
与虚拟关器相比,部运动轨迹 (MMT) 在牙修复的动态闭口调整中提供了更高的准确性. 整合患者特定的部运动可以提高数字工作流程的精度,以获得更好的闭合结果.
科学领域:
- 数字牙科和假牙科的数字牙科.
- 计算机辅助设计/计算机辅助制造 (CAD/CAM)
- 闭口分析和调整
背景情况:
- 精确的闭塞调整对于牙科修复的寿命和功能至关重要.
- 传统的闭塞调整方法可能是耗时和主观的.
- 数字工作流提供了潜在的提高精度和效率在闭塞调整.
研究的目的:
- 为了比较三个动态闭塞调整方法的性能:具有默认参数的虚拟关器 (VAD),具有个别参数的虚拟关器 (VAI) 和下运动轨迹 (MMT).
- 评估这些方法在单个皇冠 (SC) 和三单元刺皇冠 (TUC) 上的闭合精度.
主要方法:
- 在20个SC和20个TUC中引入了故意的闭塞干扰.
- 在Exocad软件中使用VAD,VAI和MMT进行调整.
- 在Geomagic中使用最近点距离映射分析了封闭面,以计算平均偏差 (MD) 和根平均平方 (RMS).
主要成果:
- 与VAD和VAI相比,MMT对SC和TUC的MD和RMS值显著较低 (p<0.05).与VAD和VAI相比,SC和TUC的MD和RMS值显著较低 (p<0.05).
- 在VAD和VAI之间没有发现MD或RMS的显著差异 (p>0.05).
- 与VAD和VAI (p<0.01) 相比,MMT在最佳范围内的距离偏差比例更高 (-0.1至0.1毫米).
结论:
- 动态闭塞调整方法显著影响后牙修复的闭塞设计.
- 与VAI和VAD相比,基于MMT的调整提供了更高的闭合精度.
- 将患者特定的下运动轨迹集成到数字工作流中,可以提高闭塞调整性能.
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