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上关比动态对青春期后的上关分类的影响:一个回顾性的历史队列研究

Rodrigo Oyonarte¹, Mónica Valeria Castro², Mackarena Sáez³

¹Graduate Orthodontic Program, Facultad de Odontología, Universidad de Los Andes, Santiago, Chile; Doctoral Programme in Health Sciences, Escola de Doctorat, Universitat Internacional de Catalunya, Josep Trueta s/n08195 Sant Cugat del Vallès, Barcelona, Spain.

International orthodontics

|December 16, 2025

概括

上关比率 (MxMdR) 在面部发育过程中演变,有助于预测青春期后的骨分类. 这种独立于放大的测量方法补充了用于早期诊断的传统头脑测量分析.

科学领域:

牙科牙科是指牙科的专业.
矯正牙科矯正牙科是一種矯正牙科.
面生物学面生物学

背景情况:

传统的头脑测量测量方法,如ANB和Wits,用于斜骨的分类,可能会受到补偿机制和X光放大的影响.
上关比率 (MxMdR) 为评估上之间的关系提供了一个动态的,独立于放大而独立的替代方案.

研究的目的:

描述MxMdR在整个面部生长过程中的发育轨迹.
评价MxMdR在确定青春期后的形骨分类中的实用性.

主要方法:

一项回顾性队列研究分析了1301张来自224名未经治疗的个体的X射线图,这些人跨越了6个宫成熟阶段.
测量包括ANB,Wits和MxMdR,使用混合模型和LASSO回归进行统计分析.
根据最终的ANB和Wits值,个人被分为I,II和III类.

主要成果:

MxMdR在增长过程中表现出显著的,渐进的下降,与反映ANB角度的类特定分布.
虽然Wits在各个类别中表现出不同的趋势,但MxMdR表现出一致的发展模式.
最初的ANB和MxMdR被确定为最终的青春期后ANB角度的关键预测因素.

结论:

MxMdR在骨类中表现出明显的发育模式,与最终的 sagittal 分类相关联.
将MxMdR与初始ANB结合起来,可以提高青春期后骨关系的预测准确度.
MxMdR是一种有价值的,独立于放大效果的工具,用于早期的骨评估.

关键词:

头脑测量术 (Cephalometry) 是一种测量头脑的方法.增长的预测增长的预测大和下的比率.ортодонтический诊断 ортодонтический诊断 ортодонтический诊断是指指指牙的诊断方式.萨吉塔尔的分类方式

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