Cho Bong Hae, Ahn Yong Woo, Jung Yun Hoa
Department of Oral and Maxillofacial Radiology, College of Dentistry, Pusan National University, Busan, South Korea.
Quintessence Int. 2009 Sep;40(8):e49-54.
To compare mandibular morphology between an asymptomatic normal group and a temporomandibular osteoarthritis group.
The study sample consisted of 39 patients with temporomandibular joint osteoarthritis screened by computed tomography and 44 asymptomatic normal subjects. Panoramic radiographs were taken of all subjects. Linear and angular panoramic measurements were taken of the groups' mandibular characteristics, and a t test was used to compare them.
The condylar head and condylar and ramal height of the osteoarthritic joints were significantly shorter than in the control group. Moreover, the gonial angles were significantly larger, and the condylar head showed a more distal inclination in the arthritic group. The unilaterally osteoarthritic patients showed significant differences between the affected and contralateral sides of the condylar head and condylar height and the condylar head angle.
The present study shows that the condylar head and condylar height were shorter, and the condylar head was more distally inclined in osteoarthritic joints.
比较无症状正常组与颞下颌骨关节炎组的下颌骨形态。
研究样本包括39例经计算机断层扫描筛查的颞下颌关节骨关节炎患者和44例无症状正常受试者。对所有受试者拍摄全景X线片。对两组的下颌骨特征进行线性和角度全景测量，并采用t检验进行比较。
骨关节炎关节的髁突头部、髁突及升支高度明显低于对照组。此外，下颌角明显更大，且骨关节炎组的髁突头部向远中倾斜度更大。单侧骨关节炎患者患侧与对侧的髁突头部、髁突高度及髁突头部角度存在显著差异。
本研究表明，骨关节炎关节的髁突头部和髁突高度较短，且髁突头部向远中倾斜度更大。
