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三维形态测量分析下子子单元在不同的斜和垂直骨模式

Ehab A Abdulghani¹, Abeer A Al-Sosowa², Jianru Yi³

¹State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Orthodontics, Faculty of Dentistry, Thamar University, Thamar City, Yemen.

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概括

三维成像显示了下骨结构在各种骨模式中的显著差异. 这些发现突出了骨类II和III,以及超分离的面部类型等条件的独特生长模式.

科学领域:

ортодонтика和牙科成像牙科成像
头骨面部形态学头骨面部形态学
3D射线图分析 3D射线图分析

背景情况:

三维 (3D) 放射成像,如形光束计算机断层扫描 (CBCT),与二维成像相比,增强了对骨形态的理解.
以前对下结构的评估受到2D成像能力的限制,需要先进的3D分析来获得详细的形态洞察.

研究的目的:

进行下功能骨子单位的三维评估.
为了在成年患者中比较不同骨松和垂直模式中的这些子单位.

主要方法:

追溯分析了281名中国成年患者的形光束计算机断层扫描 (CBCT) 扫描.
利用3D重建图像来评估和比较下功能骨子单位.
根据形 (I,II,III类) 和垂直 (常态变异,超变异,低变异) 骨模式对患者进行分类.

主要成果:

大多数下子子单元的长度,不包括交合体,显示出跨 sagittal 和垂直模式的显著变化,没有观察到的性二重形.
骨类III显示较长的体和身体单元;骨类II显示较短的身体单元.
超分歧模式与较短的冠状体,冠状体和角度单位以及较大的角度测量 (冠状体-冠状体,冠状体-角质,冠状体下部神经) 相关.

结论:

在骨类II的下质低成形与身体单元发育不良有关,而在骨类III的过度成形则涉及主要子单元的过度生长.
超分歧的面部模式的特点是子子单元发育不足,与身体单元形态学不同.
3D CBCT分析为下的复杂3D形态与骨差异的关系提供了关键的见解.

关键词:

圆束计算断层扫描 (CBCT) 是一种计算机断层扫描.部功能骨子单位骨类是骨类的人类.垂直的面部图案垂直的面部图案

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