Angle Orthod. 2020 Jul 1;90(4):539-547. doi: 10.2319/091919-598.1.
To assess the effectiveness of bone-anchored maxillary protraction (BAMP) in patients with unilateral cleft lip and palate (UCLP) and whether it was enhanced when preceded by maxillary expansion.
The sample consisted of 28 growing children (9-13 years old) with UCLP and Class III malocclusion. They were divided into two equal groups. In group I, patients were treated with BAMP not preceded by maxillary expansion. In group II, patients were treated with BAMP preceded by maxillary expansion. To assess treatment changes in three dimensions, Cone-beam computed tomography images were taken 1 week after surgical placement of the miniplates (T1) and after 9 months of treatment (T2).
BAMP produced forward movement of the maxilla in both groups (3.17 mm) and (3.37 mm) respectively, without significant differences between the two groups except for clockwise rotation of the palatal plane in group I (1.60).
BAMP is an effective treatment modality for correcting midface deficiency in patients with UCLP whether or not maxillary expansion was carried out.
评估骨锚定上颌骨前牵引(BAMP)在单侧唇腭裂(UCLP)患者中的有效性,以及是否在前牵引之前进行上颌扩张会增强其效果。
样本包括 28 名患有 UCLP 和 III 类错颌的生长中的儿童(9-13 岁)。他们被分为两组,每组 14 人。在组 I 中,患者接受了未进行上颌扩张的 BAMP 治疗。在组 II 中,患者接受了 BAMP 治疗,同时进行了上颌扩张。为了评估三维治疗变化,在迷你板植入术后 1 周(T1)和治疗 9 个月后(T2)拍摄了锥形束计算机断层扫描图像。
两组患者的上颌均向前移动(分别为 3.17mm 和 3.37mm),两组之间没有显著差异,除了组 I 的腭平面顺时针旋转 1.60°。
BAMP 是治疗 UCLP 患者面中部缺陷的有效方法,无论是否进行上颌扩张。