Moorrees C F, Efstratiadis S S, Kent R L
Forsyth Dental Center, Boston, MA.
Proc Finn Dent Soc. 1991;87(1):33-41.
Facial growth of twins by means of proportionate analysis of changes in the location of landmarks within a rectilinear coordinate system (mesh diagram) has been conducted, utilizing cephalometric data on 148 males and 128 females, observed annually from 8 to 16 years of age. Findings show relative consistence of the facial configuration during this 8 year time period, which includes the adolescent growth spurt. The median face in each sex shows little change in the location of soft and hard tissue landmarks, except for slight advancement of the chin as well as dorsal and caudad movement of Gonion. Nonetheless, individual variations in landmark location after 8 years of growth among the subjects studied signal the hazards of prediction within the precise framework that orthodontists seek.
通过在直线坐标系（网格图）内对标定物位置变化进行比例分析，对148名男性和128名女性双胞胎从8岁至16岁每年进行观察的头影测量数据进行了面部生长研究。研究结果显示，在这8年期间，包括青春期生长突增阶段，面部形态具有相对一致性。除了下巴略有前移以及下颌角有背侧和尾侧移动外，各性别中面部的软硬组织标定物位置变化不大。然而，在接受研究的对象中，生长8年后标定物位置的个体差异表明，正畸医生所追求的精确框架内进行预测存在风险。
