3 中国漢民族学童期の頭蓋, 顎顔面形態的研究 (第444回 大阪歯科学会例会)

抄録

We investigated the growth and morphological characteristics of the face and cranium of Han Chinese children with normal occlusion. We selected 180 children and divided them into six groups, three of boys and three of girls, following Hellman's developmental stages (IIIA, IIIB and IIIC). The craniofacial growth of the Han Chinese children increased forward and downward. Boys showed less growth than girls in developmental stage IIIA-IIIB. Both boys and girls showed remarkable growth in developmental stage IIIB-IIIC. The facial pattern of growth was more prominent in the mandible and less so in the maxilla. The gonial angle and mandibular plane angle of Chinese children were smaller than that of Japanese children. Han Chinese children had more prominent maxillas and mandibles than Japanese children.