光学连贯断层扫描和口内扫描的整合,以提高下终点线的准确性:比较分析
KeunBaDa Son1, Weonjoon Lee2, Kyoung Ho Kim3
1Research Professor, Advanced Dental Device Development Institute, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea.
The Journal of prosthetic dentistry
|June 21, 2025
概括
将光学连贯断层扫描 (OCT) 与口内扫描仪 (IOS) 整合起来,可显著提高扫描下末线的精度,提高固定牙假体制造.
科学领域:
- 数字牙科数字牙科
- 生物医学成像技术 生物医学成像技术
- 牙修复 牙修复 牙修复 牙修复 牙修复
背景情况:
- 对于固定牙假肢来说,精确扫描下牙末线至关重要.
- 传统的口内扫描 (IOS) 没有牙位移可能会降低精度.
- 光学连贯性断层扫描 (OCT) 集成显示出克服IOS局限性的潜力.
研究的目的:
- 为了比较从口内OCT系统和IOS扫描数据的真实性.
- 为了评估扫描准确度的牙制剂与 subgingival 完成线在体外.
主要方法:
- 使用四种方法扫描准备好的部中央切口器:CAD参考模型 (CRM),没有牙的IOS (IOSO),带有人工牙的IOS (IOSG) 和与IOSG集成的OCT.
- 通过测量预定义点和整个点云相对于CRM的偏差来评估真实性.
- 统计分析使用了克鲁斯卡尔-瓦利斯测试.
主要成果:
- IOSO (12.5微米) 和OCT (17.3微米) 两组都显示出明显低于IOSG组 (109.4微米) 的偏差.
- IOSG组在终点线上表现出最大的偏差.
- 在IOSO和IOSG组之间没有发现3D真实性的显著差异.
结论:
- 内口口腔OCT系统的整合提高了下下终点线扫描的真实性.
- 与常规IOS相比,当牙干扰存在时,OCT可以提高扫描精度.
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