分析牙运动的新方法,使用3D模型中的万能坐标系几何单点叠加
Rodrigo Xavier Silveira de Souza1, Gustavo Almeida Silveira de Souza2, João Pacheco Colares1
1Federal University of Minas Gerais, Faculty of Dentistry, Department of Restorative Dentistry (Belo Horizonte/MG, Brazil).
Dental press journal of orthodontics
|October 11, 2023
概括
一种新方法可靠地叠加3D牙科模型,使用单个通用坐标系统 (UCS) 点,简化了在正牙治疗期间分析牙运动的方法.
科学领域:
- ортодонтика和牙科技术 牙科和牙科技术
- 生物医学工程 生物医学工程
- 数字牙科数字牙科
背景情况:
- 精确的3D牙科模型叠加对于分析治疗结果至关重要.
- 现有的方法往往涉及多个点,增加了错误的可能性.
- 需要一种简化,可靠的叠加技术.
研究的目的:
- 开发和验证一种用于叠加3D大和下模型的新方法.
- 使用一个统一的统一坐标系统 (UCS) 点进行注册.
- 使用Autodesk Inventor®软件对牙运动进行叠加和分析.
主要方法:
- 从My iTero®平台对104个立体石版 (STL) 模型进行了回顾性分析.
- 使用单个UCS点与SlicerCMF®软件的模型定向.
- 在Autodesk Inventor®中叠加和测量牙运动 (扩张,侵入,旋转).
- 统计分析包括类内相关系数 (ICC) 和t测试.
主要成果:
- 成功开发了一种使用单个UCS点进行3D模型叠加的可靠方法.
- 证实了极好的内部和内部检查员可靠性 (ICC > 0.90).
- 在线性 (<1mm) 和角性 (<1.5°) 测量中发现了微不足道的系统误差.
- 该方法准确地分析了数字牙运动,如形扩张,侵入和旋转.
结论:
- 开发的单个UCS点叠加方法是可靠的和可重复的.
- 这项技术为分析3D牙科模型提供了一种简化方法.
- 该方法有助于准确评估正义牙的牙运动.
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