下颌髁突水平尺寸改变与骨质形态变化之间的关系。
Relationship between alteration of horizontal size and bony morphological change in the mandibular condyle.
作者信息
Kurita H, Koike T, Narikawa J, Nakatsuka A, Kobayashi H, Kurashina K
机构信息
Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan.
出版信息
Dentomaxillofac Radiol. 2003 Nov;32(6):355-8. doi: 10.1259/dmfr/70038602.
OBJECTIVE
To analyse the relationship between horizontal size and morphological changes on the articular surface and the lateral part of the mandibular condyle.
METHODS
The study group comprised 139 joints in 88 women aged over 18 years. Horizontal condylar size was measured in the anteroposterior (AP) and mediolateral (ML) dimensions using axial MR images. Bony morphological change on the articular surface (sagittal change) was assessed on the sagittal MR image, and resorption of the lateral part of the condyle (RLC) was assessed on a plane radiograph in the AP projection.
RESULTS
There was no significant relationship between horizontal condylar size and sagittal change. However, condyles with RLC were smaller than those without RLC in the ML dimension.
CONCLUSIONS
The results of this study suggest a possible relationship between decreased horizontal condylar size and RLC. It is also suggested that sagittal bone changes do not influence the horizontal size of the condyle.
目的
分析下颌髁突水平尺寸与关节面及髁突外侧部分形态变化之间的关系。
方法
研究组包括88名18岁以上女性的139个关节。使用轴向磁共振成像（MR）图像在前-后（AP）和中-外（ML）维度测量髁突水平尺寸。在矢状面MR图像上评估关节面的骨形态变化（矢状面变化），并在AP投照的平面X线片上评估髁突外侧部分的吸收（RLC）。
结果
髁突水平尺寸与矢状面变化之间无显著关系。然而，有RLC的髁突在ML维度上比没有RLC的髁突小。
结论
本研究结果提示髁突水平尺寸减小与RLC之间可能存在关系。还提示矢状面骨变化不影响髁突的水平尺寸。
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