遼寧省漢族の歯の形質人類学的研究
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Tooth crown traits of 19 members of the Han tribe of Liao-Ning, China, were examined and compared with those of 20 East Asian populations in order to clarify the anthropological position of the Han based on Turner's Mongoloid dental variation theory. Plaster models were taken from 68 male and 82 female students, 16 to 18 years of age, of the Paramedical School of Sheng Yang Medical College in Sheng Yang City. They were examined using the Arizona State University Dental Anthropology System. Eight traits show considerable differences between Sinodonty, which is typical of Northeast Asia, and Sundadonty, which is typical of Southeast Asia. Winging (UI1) of Han were similar to those of Sundadonty. Cusp5 (UM1), Carabelli's trait (UM1), Y-groove pattern (LM2), and deflecting wrinkle (LM1) of Han were similar to those of Sinodonty. Shoveling (UI1), 4-cusp (LM2) and double shoveling (UI1) of Han lie between Sinodonty and Sundadonty. Thirteen traits show considerable differences between N China-Mongolia and S China. Canine distal accessory ridge (UC), lingual cusp variation (LP2), and deflecting wrinkle (LM1) of Han were similar to those of N China-Mongolia. Double shoveling (UI1), interruption groove (UI2), canine medial ridge (UC), odontome (U+LP1, 2), Carabelli's trait (UM1), distal trigonid crest (LM1), and cusp6 (LM1) of Han were similar to those of S China. Tuberculum dentale (UI2), hypocone (UM2), and cusp5 (UM1) of Han lie midway between N China-Mongolia and S China. This analysis indicates that the dentition of the Han is characteristic of Sinodonty, and bears greater resemblance to that of S China rather than to that of N China-Mongolia.
- 九州歯科学会の論文
- 1997-02-25
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