中国蒙古族の頭顔部と歯列弓の形質人類学的研究
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概要
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The aim of this study is to clarify the traits of the Mongol's head, face and dental arch. In August to September of 1996, somatological measurements were taken of the head and face and plaster models of 175 Mongol young adults (88 males and 87 females), inhabitants of Hailaer City of China. Measured values of head and face, and of the dental arch were assessed by each item. Each value of the Mongol was compared with that of other East Asia tribes. Furthermore, the correlations between the measurements of head and face, and those of dental arches and palate height were examined. The results obtained were as follows : 1. Measurements of the head and face. 1) Head length : The mean value for the male is 176.0mm of the Short Type, and for the female 172.5mm of the Middle Type. 2) Head breadth : The mean value for the male is 154.1mm of the Middle Type, and for the female 150.7mm of the Wide Type. 3) Bizygomatic breadth : The mean value for the male is 123.8mm of the Very Narrow Type, and for the female 123.9mm of the Narrow Type. 4) Morphological facial height : The mean value for the male is 119.1mm of the Middle Type, and for the female 119.8mm of the High Type. 5) The head-type of the Mongol tribe belong to Hyperbrachycephalic Type. The face-type of the Mongol tribe belong to the Hyperleptoprosopic Type. 2. Measurements of the dental arch. The length of dental arch in Mongol tribe is longer than that of the Chaoxian tribe but shorter than that of the Hui tribe. The shape of dental arch in Mongol tribe is the similar to that of the Han tribe, the Man tribe and Japanese. 3. Correlation : No significant correlation was found in male. But in female significant positive correlation was shown between the bigonial breadth and upper dental arch length, and the bigonial breadth and lower dental arch length.
- 九州歯科学会の論文
- 1999-02-25