口腔病学会雑誌
Online ISSN : 1884-5185
Print ISSN : 0300-9149
中米インディオの歯科人類学的研究―海外学術調査結果報告―
三浦 不二夫一條 尚相馬 邦道黒木 健広府川 俊彦前田 真琴富田 喜内花田 晃治Alejandro ItoMario KatagiriAurelio JanoM. Elena SalasJosé Antonio PompaJosé Andrino A.
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1989 年 56 巻 3 号 p. 409-428

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The purpose of this study was to evaluate the lento-craniofacial morphology and the occlusal characteristics in the Central American Indians from the dental-anthropological point of view. The sample consisted of cephalograms, pantomograms, dental casts, photos and records (anthropometric measurements and oral examinations) which were taken from 210 modern Central American Indians and 212 ancient Central American Indians.
The results were summarized as follows:
1. Craniofacial morphology:
The modern Central American Indians showed;
(1) smaller facial height and shorter depth of the cranial base and jaws than those of the Caucasians.
(2) posterior position of peri-orbital structures, and smaller values of anterior facial height in comparison with the Japanese, which were similar to the Peruvian Indians.
(3) shorter depth of the jaws and prominence of the chin than the ancient Central American Indians.
2. Dental arch form and tooth size:
The modern Central American Indians had;
(1) wider dental arches than the Caucasians, while sharing similar values with the Peruvian Indians and the Japanese.
(2) smaller incisors, larger premolars and molars in the mesio-distal crown diameter compared with the Caucasians.
(3) smaller teeth in the mesio-distal crown diameter than the ancient Central American Indians.
3.Occlusal conditions:
The modern Central American Indians showed a good mesio-distal relationship between the upper and lower first molars in 70 percent.

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