验证传统的2D IMPA与3D IMPA对比:它仍然是一个值得信赖的角度吗? 一个基于CBCT的追溯诊断协议研究研究
Marco Serafin1, Elisa Boccalari1, Luca Fracci2
1Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122, Milan, Italy.
International orthodontics
|February 3, 2026
概括
传统的2D切口下平面角 (IMPA) 是大多数正牙病例中可靠的3DIMPA替代品. 然而,由于潜在的分散,复杂或边界病例可能会从更精确的3D评估中受益.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙科成像 牙科成像 牙科成像
- 头脑测量仪的使用方法
背景情况:
- 切口下平面角 (IMPA) 是一个关键的头计测量在正牙科.
- 评估IMPA传统上使用2D成像,但3D成像提供更高的精度.
研究的目的:
- 评估传统的2D IMPA与严格定义的3D IMPA的可互换性.
- 为了确定2D IMPA是否与3D IMPA相比提供了足够的诊断信息.
主要方法:
- 对169个CBCT扫描的回顾性分析.
- 为2DIMPA计算生成合成侧向脑图.
- 使用投射牙轴计算3D IMPA.
- 统计分析包括配对的t测试,皮尔森的相关性,线性回归和布兰德-阿尔特曼分析.
主要成果:
- 平均二维IMPA为95.29°,平均三维IMPA为95.75°,平均偏差很小 (0.46°).
- 在2D和3DIMPA之间存在强烈的相关性 (r=0.931) 和高R2 (0.867).
- 布兰德-阿尔特曼分析显示95%的协议界限从-6.29°到+7.21°.
结论:
- 2D和3DIMPA显示了可以忽略的偏差和强烈的关联,支持它们在常规情况下的可互换性.
- 虽然2D IMPA适用于标准情况,但3D IMPA建议用于扭矩关键,解剖学限制或边界情况.
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