Inter-Island Variation in Tooth Size of the Cook Islanders, and Their Biological Affinities with Other Oceanic People
Inter-Island Variation in Tooth Size of the Cook Islanders, and Their Biological Affinities with Other Oceanic People
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库克群岛居民牙齿大小的岛间差异及其与其他海洋民族的生物亲缘关系
DOI：
10.1537/ase1911.96.435
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
K. Katayama
中科院分区：
文献类型：
--
作者：
H. Yamada;K. Kawamoto;T. Sakai;K. Katayama
从岛间变异和生物种群亲和力的角度对库克群岛居民的牙列进行了计量研究。在库克群岛146个未成年男性石膏模型上记录了恒牙列的近远中和颊舌冠直径。根据每个受试者的民族血统或原籍岛屿，样本被分为六个人口系列。结果表明，库克群岛普卡普坎人的牙齿尺寸最大，在上、下第二前磨牙、第一和第二磨牙的近远中距离，以及上中切牙和下第二磨牙的颊舌径方面，普卡普坎人与库克群岛其他民族的牙齿大小差异显著。然而，在来自南部库克群体的样本中，没有发现牙齿大小的差异。部分欧洲人的样本显示出与南部库克种群的距离相当近，但与Pukapukan样本的距离却相当大。通过与大洋洲几个族裔人口的比较，出现了两个主要集群：Cooks-Taumako-Hawaii-Java集群和由新几内亚、布干维尔和澳大利亚人口组成的集群。目前的牙齿测量学分析结果支持一些骨学和牙齿形态研究提出的海洋种群的生物二分法。
The dentition of the Cook islanders was metrically examined in terms of inter-island variation and biological population affinity. The mesiodistal and buccolingual crown diameters of the permanent dentition were recorded here on 146 plaster casts of male minors in the Cook Islands. According to the ethnic origin or native island of each subject, the samples have been divided into six population series. The results revealed that Pukapukans were greatest in tooth size among the Cook Islands peoples, and that the differences between Pukapukans and the other Cook Islands populations were significant for the mesiodistal dimensions of the upper and lower second premolars, and the first and second molars, and for the buccolingual of the upper central incisor and the lower second molar. Within the samples from the southern group of Cooks, however, no difference was found in tooth size. The part-European sample showed a rather close distance to those of the southern Cook populations, but did a considerably great distance from the Pukapukan sample. Through the comparison with several ethnic populations in Oceania, there emerged two major clusters: a Cooks-Taumako-Hawaii-Java cluster and a cluster consisting of populations from New Guinea, Bougainville and Australia. The present findings of odontometric analysis supported the biological dichotomy in Oceanic populations, which was proposed by some osteological and dental morphological studies.