İlgüy Dilhan, İlgüy Mehmet, Fişekçioğlu Erdoğan, Dölekoğlu Semanur, Ersan Nilüfer
Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Yeditepe University, Bağdat Caddesi No. 238, Göztepe Kadıköy, 34728 Istanbul, Turkey.
ScientificWorldJournal. 2014 Feb 13;2014:761714. doi: 10.1155/2014/761714. eCollection 2014.
The aim of the present study was to examine the relationship between articular eminence inclination, height, and thickness of the roof of the glenoid fossa (RGF) according to age and gender and to assess condyle morphology including incidental findings of osseous characteristics associated with osteoarthritis (OA) of the temporomandibular joint (TMJ) using cone beam computed tomography (CBCT).
CBCT images of 105 patients were evaluated retrospectively. For articular eminence inclination and height, axial views on which the condylar processes were seen with their widest mediolateral extent being used as a reference view for secondary reconstruction. Condyle morphology was categorized both in the sagittal and coronal plane.
The mean values of eminence inclination and height of males were higher than those of females (P < 0.05). There were significant differences in the RGF thickness in relation to sagittal condyle morphology. Among the group of OA, the mean value of the RGF thickness for "OA-osteophyte" group was the highest (1.59 mm), whereas the lowest RGF values were seen in the "OA-flattening."
The sagittal osteoarthritic changes may have an effect on RGF thickness by mechanical stimulation and changed stress distribution. Gender has a significant effect on eminence height (Eh) and inclination.
本研究旨在根据年龄和性别，研究关节结节倾斜度、关节盂窝顶（RGF）高度和厚度之间的关系，并使用锥形束计算机断层扫描（CBCT）评估髁突形态，包括与颞下颌关节（TMJ）骨关节炎（OA）相关的骨特征的偶然发现。
回顾性评估105例患者的CBCT图像。对于关节结节倾斜度和高度，以髁突在其最宽内外侧范围可见的轴位视图作为二次重建的参考视图。在矢状面和冠状面分别对髁突形态进行分类。
男性的关节结节倾斜度和高度的平均值高于女性（P < 0.05）。RGF厚度在矢状髁突形态方面存在显著差异。在OA组中，“OA-骨赘”组的RGF厚度平均值最高（1.59 mm），而“OA-扁平”组的RGF值最低。
矢状面骨关节炎改变可能通过机械刺激和应力分布改变对RGF厚度产生影响。性别对关节结节高度（Eh）和倾斜度有显著影响。
