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目的 :运用锥形束CT(CBCT)探讨维吾尔族错畸形成年患者髁突位置及颞下颌关节形态特征及其差异,为临床诊治提供依据。方法:对64例维吾尔族安氏I类和安氏Ⅱ类1分类错畸形成年患者的颞下颌关节CBCT图像进行分析测量,采用SPSS17.0软件包对颞下颌关节窝间隙、髁突相关指标进行统计学分析,比较安氏I类和安氏Ⅱ类1分类颞下颌关节形态之间的差异。结果:安氏I类和安氏Ⅱ类1分类成年维吾尔族患者髁突在颞下颌关节窝内的位置无性别差异(P>0.05);安氏Ⅱ类1分类患者的颞下颌关节窝前间隙、上间隙及深度均大于安氏I类患者,后间隙小于安氏I类患者;髁突的内外径及前后径在不同矢状骨面型患者中存在显著差异。结论:维吾尔族安氏I类患者的髁突位置及颞下颌关节形态与安氏Ⅱ类1分类患者存在差异,临床诊治过程中应予以重视。
OBJECTIVE: To study the condylar position and temporomandibular joint morphological characteristics and their differences in adult patients with Uygur malocclusion by cone beam computed tomography (CBCT), and provide the basis for clinical diagnosis and treatment. Methods: 64 cases of Uygur Angle Class I and Class Ⅱ Division 1 malocclusion adult patients with temporomandibular joint CBCT images were analyzed and measured by SPSS17.0 package temporomandibular joint gap, condyle related indicators Statistical analysis was performed to compare the differences between the Class Ⅰ and Class Ⅱ division 1 temporomandibular joint morphologies. Results: There was no gender difference in the position of temporomandibular joint between Angle Class I and Class Ⅱ Division 1 adult Uygur patients (P> 0.05). In Class Ⅱ division 1 patients, the temporomandibular joint anterior gap , The gap and depth were greater than those of Class I patients, and the posterior gap was smaller than that of Class I patients. There were significant differences in the internal and external diameters and anteroposterior diameter of condyle in patients with different sagittal planes. CONCLUSIONS: There is a difference in the position of the condyle and the type of temporomandibular joint between Class I patients with Uighur Angle and Class Ⅱ division 1 patients. It is important to pay attention to the clinical diagnosis and treatment.