Cambiano Aldo Otazú, Janson Guilherme, Fuziy Acácio, Garib Daniela Gamba, Lorenzoni Diego Coelho
Department of Orthodontics, Bauru Dental School, University of São Paulo, Brazil.
J Orthod Sci. 2017 Oct-Dec;6(4):141-146. doi: 10.4103/jos.JOS_66_17.
This retrospective study aimed to evaluate the dentoalveolar, skeletal, and soft tissue effects obtained with bone-anchored pendulum appliance in patients with Class II malocclusion.
A total of 18 patients (4 male, 14 female) at a mean pretreatment age of 14.0 years (+1.08) were enrolled in this study. All patients were treated with the bone-anchored pendulum appliance for an average duration of 4.8 months. Only the active distalization period was evaluated with predistalization and postdistalization lateral cephalograms. Skeletal, dentoalveolar, and soft tissue variables were obtained. Based on these variables, the treatment effects were evaluated with dependent -test.
Correction of Class II molar relationship resulted from distal movement of 3.45 mm and tipping of 11.24° of the first maxillary molars. The premolars were distalized accompanying the molars.
The bone-anchored pendulum appliance proved to be an effective method for distalization of maxillary molars in cases that require maximum anchorage, avoiding reciprocal mesial movement of premolars and incisors.
本回顾性研究旨在评估骨锚式摆锤矫治器对安氏II类错牙合患者牙槽骨、骨骼及软组织的影响。
本研究共纳入18例患者（4例男性，14例女性），治疗前平均年龄为14.0岁（±1.08）。所有患者均采用骨锚式摆锤矫治器治疗，平均治疗时间为4.8个月。仅在远中移动前和远中移动后的头颅侧位片上评估主动远中移动期。获取骨骼、牙槽骨和软组织变量。基于这些变量，采用配对t检验评估治疗效果。
安氏II类磨牙关系的矫正源于上颌第一磨牙远中移动3.45 mm及倾斜11.24°。前磨牙随磨牙一起远中移动。
对于需要最大支抗的病例，骨锚式摆锤矫治器被证明是上颌磨牙远中移动的有效方法，可避免前磨牙和切牙的反向近中移动。
