[下颌偏斜患者髁突的侧向运动]
[Condylar lateral movements in patients with mandibular deviation].
作者信息
Zhang Ruo-Fang, Zhang Ding, Liu Yi, Fu Min-kui
机构信息
Department of Orthodontics, Faculty of Stomatology, Capital University of Medical Sciences, Beijing 100050, China.
出版信息
Zhonghua Kou Qiang Yi Xue Za Zhi. 2006 Oct;41(10):606-9.
OBJECTIVE
To record condylar movements of patients with mandibular deviation and analyze their characteristics.
METHODS
Computer aided diagnosis axiography (CADIAX III) was used to record and analyze condylar lateral movements in 31 patients (9 males, 22 females and the age range 12 - 26, mean age 18 years old) with mandibular deviation. Paired-t test and rank sum test were used to compare condylar movements. Multinomial logistic analysis was used to clarify the relationship between condylar movement and mandibular deviation.
RESULTS
The condylar lateral movements in patients with mandibular deviation were asymmetric. The tracing of the shifted side was longer than the contralateral side (P < 0.01). The transverse inclination of the shifted side was smaller than the contralateral side (P < 0.01). With the increase of deviation, the movement length difference between the two sides increased and the length of contralateral side decreased (P < 0.01).
CONCLUSIONS
The patients with mandibular deviation not only have morphological asymmetry but asymmetric condylar movement length and inclination in lateral movements. There is specific relationship between condylar movement and mandibular deviation.
目的
记录下颌偏斜患者的髁突运动并分析其特征。
方法
采用计算机辅助诊断轴面断层摄影术（CADIAX III）记录并分析31例（9例男性，22例女性，年龄范围12 - 26岁，平均年龄18岁）下颌偏斜患者的髁突侧向运动。采用配对t检验和秩和检验比较髁突运动。采用多项逻辑分析阐明髁突运动与下颌偏斜之间的关系。
结果
下颌偏斜患者的髁突侧向运动不对称。移位侧的轨迹比健侧长（P < 0.01）。移位侧的横向倾斜度小于健侧（P < 0.01）。随着偏斜度增加，两侧运动长度差异增大，健侧长度减小（P < 0.01）。
结论
下颌偏斜患者不仅存在形态不对称，而且在侧向运动中髁突运动长度和倾斜度也不对称。髁突运动与下颌偏斜之间存在特定关系。
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