Chang H P, Kinoshita Z, Kawamoto T
Department of Orthodontics, School of Dentistry, Kaohsiung Medical College, Taiwan, ROC.
Eur J Orthod. 1993 Dec;15(6):493-501. doi: 10.1093/ejo/15.6.493.
In order to explore the growth changes in facial configuration, 160 subjects (80 young adults and 80 children aged 11-12) with normal occlusion were selected for roentgenocephalometric analysis. The present study led to the following conclusions: (a) The ratios of anterior upper to anterior total facial heights, anterior lower to anterior total facial heights, and anterior upper to anterior lower facial heights in both sexes stayed constant around 45, 55, and 81 per cent, respectively. (b) The change in the ratio of the posterior total to anterior total facial heights was mainly due to the greater potentiality of the posterior part of the lower face. (c) The increases of the lower anterior and posterior dental heights were larger than that of the upper anterior and posterior dental heights, respectively. The increases of the upper and lower posterior dental heights were larger than that of the upper and lower anterior dental heights, respectively. (d) On average, the mandibular plane and the occlusal plane tended to rotate forwards with age while the cant of the sella-nasion plane, the Frankfort horizontal plane, and the palatal plane remained fairly unchanged. (e) The saddle angle, the articular angle, and the FNA angle remained relatively stable with age, while the gonial angle and the FNB angle seemed to be age-related. The decrease in the size of the gonial angle might contribute mainly to the flattening tendency of the mandibular growth coincident with general growth. (f) Both the inclination of upper incisor to palatal plane and lower incisor to mandibular plane remained reasonably constant throughout maturation.(ABSTRACT TRUNCATED AT 250 WORDS)
为了探究面部形态的生长变化，选取了160名咬合正常的受试者（80名年轻成年人和80名11 - 12岁儿童）进行X线头影测量分析。本研究得出以下结论：（a）男女的前上面部高度与前总面部高度之比、前下面部高度与前总面部高度之比以及前上面部高度与前下面部高度之比分别稳定在45%、55%和81%左右。（b）后总面部高度与前总面部高度之比的变化主要是由于下脸后部具有更大的生长潜力。（c）下前牙和后牙高度的增加分别大于上前牙和后牙高度的增加。上后牙和下后牙高度的增加分别大于上前牙和下前牙高度的增加。（d）平均而言，下颌平面和咬合平面随年龄增长有向前旋转的趋势，而蝶鞍 - 鼻根平面、法兰克福水平面和腭平面保持相当稳定。（e）鞍角、关节角和FNA角随年龄相对稳定，而下颌角和FNB角似乎与年龄有关。下颌角大小的减小可能主要导致下颌生长的变平趋势与整体生长一致。（f）在整个生长发育过程中，上切牙与腭平面的倾斜度以及下切牙与下颌平面的倾斜度都保持相当稳定。（摘要截断于250字）
