Mandibular torus morphology.
Mandibular torus morphology.
复制标题
下颌环面形态。
DOI：
10.1002/ajpa.1330530411
复制
发表时间：
1980
影响因子：
2.8
通讯作者：
B. J. Sellevold
中科院分区：
文献类型：
--
作者：
B. J. Sellevold
研究人员检查了下颌环体的形态，并将来自格陵兰岛的中世纪挪威骨骼种群与14至17世纪格陵兰爱斯基摩骨骼系列进行了比较。分析了三个参数：发育程度（4分制），位置和长度，以及根据旋钮或小叶数量的表面形态。研究发现，爱斯基摩人的tori发育较弱的频率很高，没有极端发育的病例，而超过20%的挪威人的tori处于“极端”类别。人们普遍发现，挪威人的脑环比爱斯基摩人的更长，而且这两个群体的脑环在两侧之间都表现出轻微的不对称，左侧的脑环往往比右侧更长，位置更靠前。在表面形貌上发现了很大的差异。挪威人的环面通常是非常不规则的，而爱斯基摩人的环面是相当光滑的。这些差异被认为是由基因决定的。
The morphology of the mandibular torus was examined, and comparisons were made between a Medieval Norse skeletal population from Greenland and a 14th to 17th century Greenland Eskimo skeletal series. Three parameters were analyzed: degree of development (on a 4-point scale), position and length, and surface morphology according to the number of knobs, or lobuli. It was found that the Eskimos have a high frequency of weakly developed tori and no cases of the extreme development, while over 20% of the Norsemen had tori in the "extreme" category. The Norse torus was generally found to be longer than that of the Eskimos, and both groups exhibited a slight asymmetry between the sides, the torus on the left side tending to be longer and more forward in position than the right. A great difference was found in surface morphology. The Norse torus is in general very irregular, while the Eskimo torus is rather smooth. These differences are believed to be genetically determined.