Lavelle C L
Anat Anz. 1985;158(4):305-13.
Traditional osteometric studies serve to combine both size and shape together, so whether contrasts in mandibular form during recent times reflect predominantly size, or shape, changes remains controversial. In order to examine specific changes in morphological shape, mandibular outline form was subjected to medial axis transformation. This technique was performed on museum mandibles derived from Romano-British, Anglo-saxon and modern (19th century) samples. The lengths of the derived component medial axes, and angles subtended by pairs of medial axes, were subsequently subjected to univariate and multivariate statistical analysis. The data indicated that there were contrasts in mandibular shape between the 3 samples, predominantly reflecting a more vertical ramus, closer approximation between both coronoid and condylar processes with a more prominent mental region in the modern compared with the two older samples. Although the causes of such mandibular changes remain obscure, this study provided objective data on mandibular shape differences in recent times.
传统的骨测量研究旨在将大小和形状结合起来，因此近代下颌形态的差异主要反映的是大小变化还是形状变化，仍然存在争议。为了研究形态形状的具体变化，对下颌轮廓形态进行了中轴线变换。该技术应用于来自罗马 - 不列颠、盎格鲁 - 撒克逊和现代（19世纪）样本的博物馆下颌骨。随后，对导出的中轴线组成部分的长度以及中轴线对所夹的角度进行了单变量和多变量统计分析。数据表明，这三个样本之间存在下颌形状差异，主要反映出与两个较古老样本相比，现代样本的下颌支更垂直，冠突和髁突之间的距离更近，颏部更突出。尽管这种下颌变化的原因尚不清楚，但该研究提供了近代下颌形状差异的客观数据。
