台湾 Bunun 族の歯列弓および口蓋の形態に関する研究
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概要
- 論文の詳細を見る
Taiwan Aboriginals are classified ten tribes, that is, Atayal, Thao, Saisiat, Bunun, Tsou, Paiwan, Rukai, Ami, and Yami. Of these tribes, the Bunun lives in low-mountain area in south-east part of Taiwan. The aim of this study is to clarify the traits of the Bunun's oral cavity which have never been reported yet. Plaster models were taken from 23 males and 31 females of the Bunun aged 16 years and older, and were measured. Each value of the Bunun's dental arches and palates measured was compared between males and females. And each value of the Bunun also compared with that of the Ami, the Paiwan, the Rukai, Taiwanese and the Japanese. Upper and lower dental arch lengths of the Bunun were not significantly different between males and females. Dental arch lengths of the Bunun females were similar to those of the Paiwan and the Rukai females. They were shorter in the Bunun than in the Ami, Taiwanese, and the Japanese (Kyushu and Okinawa) in both males and females. Upper and lower dental arch breadths of the Bunun were significantly greater in the males than in the females. Dental arch breadths of the Bunun males were similar to those of the Paiwan and the Rukai males. Dental arch breadth measurements were greater in the Bunun than in the Ami, and were greater at anterior region but smaller at posterior region than in the Japanese in both males and females. Lengths of dental arch of the Bunun were not significantly different between males and females. Lengths of dental arch were shorter in the Bunun than in the Ami, the Paiwan, the Rukai, Taiwanese and the Japanese in both males and females. Anterior and posterior palatal heights and length of sutura palatina mediana of the Bunun were not significantly different between males and females, respectively. Palatal heights of the Bunun were smaller than those of the Ami males, the Paiwan, the Rukai, Taiwanese males and the Japanese males. Length of sutura palatina mediana of the Bunun were longer than that of the Paiwan, but were shorter than that of the Ami, the Rukai, Taiwanese and the Japanese in both males and females. Palatal arch lengths of the Bunun were not significantly different between males and females. Palatal arch length were shorter in the Bunun than in the Ami, the Paiwan, the Rukai, Taiwanese and the Japanese in the males. In the females, they were shorter in the Bunun than in Taiwanese and the Japanese. Palatal breadths of the Bunun were significantly greater in the males than in the females. Palatal breadths at posterior region were smaller in the Bunun than in the Ami, the Paiwan and the Rukai, but were greater than the Japanese in both males and females. Mandibular alveolar breadths of the Bunun were significantly greater in the males than in the females. They were greater than those of the Ami but were smaller than those of the Rukai. They were greater at anterior region but were smaller at posterior region than those of the Paiwan. They were greater at posterior region than those of Taiwanese and the Japanese in both males and females. These findings and the results of cluster analysis suggest that oral traits of the Taiwan Aboriginals differ from those of Chinese Taiwan and the Japanese ; oral traits between the Paiwan and the Rukai are very similar ; oral traits of the Bunun are different from those of the Ami, the Paiwan and the Rukai.
- 九州歯科学会の論文
- 1992-06-25