颞下颌关节骨性部分的测量和分析

本文观察测量并分析了颞下颌关节的形态结构,建立了能较客观反映该关节形态的15项指标的正常值。用3项特征指数,即关节窝指数、关节结节指数和髁突指数,能较好地反映该关节的几何形态,并表达其功能部位的相互关系,以及用频数分布曲线反映其分布规律。本文认为,男性的颞下颌关节显著大于女性,而左、右侧之间,有无咬(牙合)组之间的差别均不显著。本文结果可为该关节的临床研究、病变分析乃至人工颞下颌关节的设计,提供形态学依据。

MEASUREMENT AND ANALYSIS OF THE OSSEOUS PART OF THE TEMPOROMANDIBULAR JOINT

This article is based on the observation of the temporomandibular joint(TMJ) and on the analysis of its morphological structure. The normal values of 15 items, used to represent the structure of the joint, have been established.Three indices, that is the glenoid fossa index, the articular tubercle index and the condyle index, are accepted to express the geometrical characters and to reflect the close relationship between the two functional parts of the joint. Besides, the frequency distributing curves are presented. It is concluded that the male's TMJ is eminently larger than the female's, while there is no distinct difference between left and right sides and between groups with or without occlusion. This result might meet the needs of the Clinical research as well as the design of the artificial TMJ.