中国シボ(錫伯)族の頭顔部および歯列弓の形質人類学的研究
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概要
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The purpose of this research is to clarify the traits of head, face and dental arch form of Xibo tribe by comparing with three other tribes Mongol, Man, Han living in northeastern China and Japanese. The somatological measurements of Xibo's head and face, and the casts of the dental arches were recorded from the 228 subjects of Xibo's young adults (108 males and 120 females) living in Shenyang city of China in September, 1997, and t-test was used to compare and assess the following respective items. The results obtained in this research were as follows : 1. Comparison of the male and the female on the mean values of head and face measurements. 1) Head length : The male is 174.06 mm and the female 169.28 mm, and both belong to the Short type. 2) Head breadth : The male is 154.15 mm, and the female 149.79 mm, both belong to Middle type. 3) Bizygomatic breadth : The male is 134.49 mm, which belongs to the Narrow type ; and the female 131.43 mm, which belongs to the Middle type. 4) Morphological facial height : The male is 116.89 mm, which belongs to the Low type ; and the female 112.49 mm, which belongs to the Middle type. 5) Cephalic index : The male is 88.65, and the female 88.54, both belong to the Hyperbrachycephalic type. 6) Morphological facial index : The male is 87.03, which belongs to the Mesoprosopic type ; and the female 85.69, which belongs to the Leptoprosopic type. 2. Comparison of Xibo tribe and four other tribes on the mean values of dental arch measurements. The shape of upper jaw in Xibo tribe is similar to Mongol, Man and Han tribes, but the length of former's lower jaw are slightly longer than those of other tribes except Japanese. The length of upper and lower jaws of Xibo tribe are siginificantly longer than those of Japanese respectively. 3. According to the Cluster analysis, Xibo tribe is the closest to Man tribe among five East Asian populations.
- 九州歯科学会の論文
- 1999-12-25
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