@article{oai:mdu.repo.nii.ac.jp:00000916, author = {岩崎, 浩 and 林, 于昉 and 宮沢, 裕夫 and 宮崎, 顕道 and 須澤, 弥生子 and 張, 暁燕 and 李, 憲起 and 徐, 兵 and 海, 懐麗 and 張, 英懐 and 廉, 雲敏 and 牛, 夢勇 and 王, 躍進 and 蘇, 強 and 小林, 茂夫}, issue = {2}, journal = {松本歯学}, month = {Aug}, note = {application/pdf, The purpose of this study was to investigate the size of the primary tooth crowns, primary dental arches, standard values and frequency distribution of primary occlusion in Chinese children. With the cooperation of a kindergarten in Shijiazhuang-city, China, the dental plasters from 55 children (36 boys and 19 girls, age range from 3-6 years old) with normal primary occlusion were collected. Because of different growth rates of the children, these children were divided into two groups, one comprising children less than 5 years old and the other of 5 years old or older. According to the method that the Japanese Society of Pediatric Dentistry reported, the data were statistically analyzed and compared to Japanese children. The results were summarized as follows: 1. Except lower primary lateral incisors, the values of the mesio-distal width of primary crowns of each tooth were significantly larger for boys than for girls in all tooth types. Also the Chinese children were inclined to show smaller mesio-distal tooth crown width than those of the Japanese children in all types of teeth. 2. Compared with the Japanese children, the Chinese children were inclined to show smaller primary dental arch length both in the maxilla and the mandible. But in the senior group, the Chinese girls were inclined to show smaller primary dental arch width than their Japanese female counterparts. On the contrary, the Chinese children tended to show larger dimensioned primary dental arch height than those of the Japanese children. 3. Though spaces between teeth (primate and growth spaces) were found in the Chinese children, the frequency was lower than that of the Japanese children. 4. The frequency of terminal plans in the Chinese children was 41.8% in the vertical type, 6.4% in the distal-step type and 51.8% in the mesial step type. 5. The primary canines occlusal relationship in the Chinese children was 63.1% in type I, 13.6% in type II and 23.7 in type III.}, pages = {157--171}, title = {石家荘市(中国)小児の乳歯列形態 第一報: 乳歯冠ならびに歯列弓の大きさ,咬合状態に関する調査研究}, volume = {20}, year = {1994} }