正常青年人下颌切点边缘运动的观察研究

A study of the jaw border movements in the young subjects with the normal occlusion

本文采用下颌运动描记仪(SGG),对34例正常(牙合)青年的下颌边缘运动进行了系统性研究。结果表明,下颌边缘运动受到(牙合)、神经肌肉及颞下颌关节的影响,不同的运动方式有其特有的生理控制机理,受解剖性因素((牙合)、颞颌关节)控制的运动轨迹重复性优于受生理性因素(神经肌肉)控制的运动轨迹重复性。

In this study, the jaw border movements were analyzed in 34 young normal subjects. The mandibular incisor position was traced with Sirognathograph instrument in three planes, Tne results showed, The border movements were influenced by ocelusion, temporomandibular joints and neuromuscles. Under the control of occlusion, temporomandibular joints, the border movements were more repetitive.