Growth and changes in maxillary arch form in complete unilateral cleft lip and cleft palate children.
Growth and changes in maxillary arch form in complete unilateral cleft lip and cleft palate children.
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完全性单侧唇腭裂儿童上颌牙弓形态的生长和变化。
DOI：
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发表时间：
1975
期刊：
影响因子：
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通讯作者：
T. Miyazaki
中科院分区：
文献类型：
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作者：
T. Wada;T. Miyazaki
本研究旨在比较62例正常人和87例单侧完全性唇腭裂患者上颌牙弓的生长变化。这是通过测量他们的颌面模型，这将有助于澄清这样的问题：何时何地上颌骨生长抑制将发生，以及生长变化的几个方面。单侧完全性唇腭裂患者分为4个阶段：1）唇腭裂闭合前6个月的婴儿; 2）2岁儿童，6个月时唇修复; 3）3岁儿童，6个月时唇修复，2年时腭闭合; 4）4岁儿童，修复如第3阶段。正常受试者也分为四个阶段，以匹配裂组的年龄和体重。在全身麻醉下，对每例患者的上颌和上面部同时进行印模，制作颌面部模型。结果表明：（1）正常组前牙槽骨区在第1、2期和第3、4期前牙槽骨区向前和向下生长明显增加。前牙槽弓的生长在所有四个阶段都是轻微的。磨牙后尖的深度和宽度在所有四个阶段逐渐增加，并测量后牙槽骨区域的生长。(2)在裂缝组中：在第1阶段，较大节段的前端突出，并且较大节段和较小节段，特别是在前部区域，均侧向脱位。前牙槽骨高度明显低于正常组。在第2阶段，与正常组相比，在裂隙组的所有牙槽骨点，特别是在前牙槽骨区域，在深度和高度上的生长抑制被注意到。在第三阶段，所有牙槽点的深度均下降，但与第二阶段相比没有发现显着差异。然而，高度的增加是明显的。第4期，腭裂组牙槽突点的深度和高度均小于正常组。
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.