PDF(Pubmed)
Abstract：
Background: Bone-anchored maxillary protraction (BAMP) aims to correct midfacial deficiencies, with proven positive skeletal changes without potential unwanted side effects. However, the influence of BAMP treatment on facial soft tissues, particularly in subjects with complete unilateral cleft lip, alveolus, and palate (CUCLAP), remains unclear. Methods: This single-center longitudinal cohort study examined the effects of 1.5 years of BAMP treatment on facial soft tissues in growing subjects with complete unilateral cleft lip, alveolus, and palate. The sample consisted of 25 patients, age range 9.7 to 12.6 years. Three-dimensional surface models derived from CBCT scans were superimposed on stable structures of the anterior cranial base and on the occipital area posterior of the foramen magnum to assess three-dimensional changes due to growth and BAMP therapy. Results: The results revealed a moderate positive correlation (Pearson\'s correlation coefficient from 0.203 to 0.560) between changes in hard tissue and soft tissue; some correlations were found to be weak (<0.300). Linear changes in soft tissue following BAMP were in the same direction as skeletal changes, showing downward, forward, and outward displacement. The only exception was in the vertical dimension. The lower facial third showed a slight but significant reduction, mainly in lip length (-1.2 mm), whereas the middle facial third showed a small increase (1.1 mm). Conclusions: It was concluded that during BAMP, soft tissue changes occur in the same direction as skeletal changes, although with a larger variability and less pronounced effects.
摘要：
背景：骨锚上颌前牵引（BAMP）旨在纠正面部中部缺陷，具有已证明的积极骨骼变化，没有潜在的不必要的副作用。然而,BAMP治疗对面部软组织的影响，特别是在患有完全性单侧唇裂的受试者中，肺泡,和腭（CUCLAP），尚不清楚。方法：这项单中心纵向队列研究检查了1.5年BAMP治疗对单侧完全性唇裂的生长受试者面部软组织的影响，肺泡,和味觉。样本由25名患者组成，年龄范围为9.7至12.6岁。将CBCT扫描得出的三维表面模型叠加在前颅底的稳定结构和大孔后部的枕骨区域上，以评估由于生长和BAMP治疗引起的三维变化。结果：结果显示硬组织和软组织的变化之间存在中度正相关（Pearson的相关系数从0.203到0.560）；发现一些相关性较弱（<0.300）。BAMP后软组织的线性变化与骨骼变化方向相同，向下显示，forward,和向外流离失所。唯一的例外是垂直维度。下面部三分之一显示轻微但显著的减少，主要是唇长（-1.2毫米），而中部面部三分之一显示少量增加（1.1毫米）。结论：在BAMP期间，软组织的变化与骨骼的变化方向相同，尽管具有更大的变异性和不太明显的影响。
