Mølsted K, Dahl E
Department of Orthodontics, Royal Dental College, Copenhagen, Denmark.
Cleft Palate J. 1990 Apr;27(2):184-90; discussion 190-2. doi: 10.1597/1545-1569(1990)027<0184:aotmic>2.3.co;2.
Craniofacial asymmetry was analyzed in 31 children with unilateral cleft lip and palate (UCLP) and compared to a group of 24 children with incomplete clefts of the lip (CL). Symmetry was evaluated from 32 variables on posteroanterior cephalometric radiographs. Two types of asymmetry were identified: In the first, there was a positional deviation and a change of arch shape of the maxillary segment on the cleft side. The basal maxillary width was similar in the two groups. At the dentoalveolar level a decrease in width was localized to the cleft side in the UCLP group. Maxillary height of the cleft segment was reduced. The second type was related to the anterior part of the maxilla and the nasal septum. The inferior border of the bony part of the nasal septum deviated towards the cleft side. The anterior nasal spine and the midpoint between the upper central incisors deviated toward the noncleft side, but to a different degree indicating a vertical tilting of the premaxillary region.
对31名单侧唇腭裂（UCLP）患儿的颅面不对称情况进行了分析，并与一组24名不完全唇裂（CL）患儿进行了比较。通过后前位头颅侧位片上的32个变量评估对称性。确定了两种不对称类型：第一种，裂隙侧上颌节段存在位置偏差和牙弓形态改变。两组的上颌基底宽度相似。在牙槽骨水平，UCLP组的宽度减小局限于裂隙侧。裂隙节段的上颌高度降低。第二种类型与上颌前部和鼻中隔有关。鼻中隔骨部的下缘向裂隙侧偏移。前鼻棘和上中切牙之间的中点向非裂隙侧偏移，但程度不同，表明前颌区域存在垂直倾斜。
