Wada T, Miyazaki T
Cleft Palate J. 1975 Jan;12(00):115-30.
This study aims at the comparison of growth changes of the maxillary arch of 62 normals and 87 complete unilateral cleft lip and cleft palate subjects. This is achieved by measuring their maxillo-facial models, which will aid in clarifying such questions as: when and where the maxillary growth inhibition will occur, and the several aspects of growth-change. Patients with complete unilateral cleft lip and cleft palate were classified into four stages: 1) six month old infants before lip and palatal closure; 2) two year old children, lip repair at six months of age; 3) three year old children, lip repair at six months and palatal closure at two years; 4) four year old children, with repairs as in stage 3. Normal subjects were also classified into four stages, to match the cleft group by age and body weight. Impressions were taken for each patient's upper jaw and upper face simultaneously under general anesthesia, and the maxillo-facial model was made. Results obtained were as follows: (1) In the normal group, the forward and downward growth of the anterior alveolar region increased considerably between stages 1 and 2 and stages 3 and 4. The growth of the anterior alveolar arch was slight during all four stages. The depth and width of the retromolar point increased gradually through all four stages, and measured the growth of the posterior alveolar region. (2) In the cleft group: at stage 1 the anterior end of the larger segment was protruded and both the larger and smaller segments, especially in the anterior region, were laterally dislocated. The height of the anterior alveolar region was found to be noticeably less than that of the normal group. At stage 2 the growth inhibition in depth and height was noted in all the alveolar points of the cleft group, especially in the anterior alveolar region, in comparison to the normal group. At stage 3 the depths in all alveolar points decreased, but no significant difference was found when compared to stage 2. However, the increase in heights was marked. At stage 4 the depths and heights of alveolar points in the cleft group were found to be smaller than those of the normal group.
本研究旨在比较62名正常人和87名单侧完全性唇腭裂患者上颌牙弓的生长变化。通过测量他们的颌面模型来实现这一目的，这将有助于阐明诸如：上颌生长抑制何时何地会发生，以及生长变化的几个方面等问题。单侧完全性唇腭裂患者被分为四个阶段：1）唇腭裂闭合前6个月大的婴儿；2）6个月时进行唇修复的2岁儿童；3）6个月时进行唇修复、2岁时进行腭裂闭合的3岁儿童；4）同3期修复情况的4岁儿童。正常受试者也分为四个阶段，以在年龄和体重上与腭裂组相匹配。在全身麻醉下同时对每位患者的上颌和上脸进行取模，并制作颌面模型。获得的结果如下：（1）在正常组中，前牙槽区域的向前和向下生长在第1阶段和第2阶段以及第3阶段和第4阶段之间显著增加。在前四个阶段中，前牙槽弓的生长轻微。磨牙后点的深度和宽度在所有四个阶段中逐渐增加，并测量了后牙槽区域的生长。（2）在腭裂组中：在第1阶段，较大节段的前端突出，较大和较小节段，特别是在前部区域，向外侧移位。发现前牙槽区域的高度明显低于正常组。在第2阶段，与正常组相比，腭裂组所有牙槽点的深度和高度生长抑制明显，尤其是在前牙槽区域。在第3阶段，所有牙槽点的深度均下降，但与第2阶段相比未发现显著差异。然而，高度增加明显。在第4阶段，腭裂组牙槽点的深度和高度均小于正常组。
