Harran University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Sanliurfa, Turkey.
Harran University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Sanliurfa, Turkey.
J Clin Densitom. 2024 Oct-Dec;27(4):101507. doi: 10.1016/j.jocd.2024.101507. Epub 2024 Jul 6.
The aim of this study was to evaluate whether degenerative bone changes in the mandibular condyle on cone beam computed tomography images are associated with the Eichner index.
336 cone beam computed tomography images condyle images of 168 patients were analyzed for degenerative bone changes. These changes were named as condyle flattening, osteophytes, erosions, subchondral sclerosis, generalized sclerosis and subchondral cysts. The edentulous status of the patients was classified as group A-B-C and subtypes according to the Eichner index. Categorical variables were evaluated with chi-square test and p < 0.05 was considered statistically significant.
According to the results of the study, the most common degenerative condyle change was flattening of the condyle. Among the Eichner index groups, the most common group was A and the least common group was C. Condyle changes on the right and left sides were most commonly observed in group A patients. The statistically significant majority of patients with right-sided condyle flattening and erosion were in group C. No significant difference was found between all other condyle changes and Eichner index groups. There was no significant relationship between Eichner index and gender.
Degenerative bone changes (flattening and erosion of the condyle) in the condyle region were more common in group C patients with more tooth loss. There is a significant relationship between condyle changes and posterior toothlessness.
本研究旨在评估髁突的锥形束 CT 图像上的退行性骨变化是否与 Eichner 指数有关。
对 168 例患者的 336 例髁突锥形束 CT 图像进行退行性骨变化分析。这些变化被命名为髁突变平、骨赘、侵蚀、软骨下硬化、广泛硬化和软骨下囊肿。根据 Eichner 指数，将患者的无牙状态分为 A-B-C 组和亚型。采用卡方检验评估分类变量，p<0.05 为统计学显著。
根据研究结果，最常见的退行性髁突变化是髁突变平。在 Eichner 指数组中，最常见的组是 A，最不常见的组是 C。在 A 组患者中，最常见的是右侧和左侧髁突变化。在 C 组患者中，右侧髁突变平和侵蚀的患者中，绝大多数为统计学显著。其他髁突变化与 Eichner 指数组之间无显著差异。Eichner 指数与性别之间无显著关系。
髁突区域的退行性骨变化（髁突变平及侵蚀）在失牙较多的 C 组患者中更为常见。髁突变化与后牙缺失有显著关系。
