在台灣中國人的齒科人類學的分析研究（3）牙齒形態特徵部分

A Dental Anthropological Study of Chinese in Taiwan (3) Dental Trait

黃純德(Shun-Te Huang) ； 三浦不二夫(Fusio Miura) ； 相馬邦道(Kunimichi Soma)

《The Kaohsiung Journal of Medical Sciences》 8卷12期 (1992/12) Pp. 665-678

https://doi.org/10.6452/KJMS.199212.0665

摘要

從齒科人類學上的觀點為求了解在台灣中國人牙齒形態徵的發育程度，植研究收集台灣地區國小學童中擁有近乎正常咬合之恆齒列者男女合計125名之上下顎齒列模型，就牙齒各種形態特徵的發育程度來予以觀察分類，並就其出現頻率與x² test 檢定其結果，得到下列結論：國人上顎前齒部shovel form呈高出現率，上顎側門牙之退化傾向較少。下顎小臼齒之介在結節，舌側咬頭，副咬頭，中心隆線，咬合面溝的發育情形都極為發達。上顎大臼齒部Carabelli cusp出現率極低，上顎第二大臼齒hypocone之退化傾向較強，metacone之退化情形較弱，而壓扁程度較多。與日本人、中美、南美印第安人及白種人之結果相比得知：國人與日本人牙齒形態特徵的發育程度較接近；國人與日本人所形成的族群之牙齒形態特徵的發育程度亦與中、南美印第安人較接近，與白種人不同之處較多。

並列摘要

Models of the upper and lower dental arches of 125 Chinese children in Taiwan with acceptable normal permanent dentition were surveyed in order to understand the developmental grades of dental traits from the viewpoint of dental anthropology. Developmental grades of dental traits were classified, calculated, statistically analysed by x² test and results were summarized. Upper anterior teeth showed high frequency of shovel form; upper lateral incisors showed less tendency of regression. Interstitial cusp, lingual cusp, paracusp, central prominence and occlusal groove of lower premolars developed prominently. Upper molars showed low frequency of Carabelli cusps. Hypocone of upper second molars showed strong tendency of regression, but metacone had low regression tendency and a strong degree of compression. Compared to Japanese, Central American and South American Indians and Caucasians, the development of dental traits of Chinese in Taiwan was more similar to that of Japanese than to others. The characteristics of dental trait of Chinese in Taiwan and Japanese also showed greater similarity to Central and South American Indians than to Caucasians.

並列關鍵字

Chinese in Taiwan ； dental trait ； anthropology