Brito Deborah Brindeiro de Araújo, Henriques José Fernando Castanha, Fiedler Camilla Foncatti, Janson Guilherme
Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ortodontia (Bauru/SP, Brazil).
Dental Press J Orthod. 2019 Nov 11;24(5):30-39. doi: 10.1590/2177-6709.24.5.030-039.oar. eCollection 2019.
This study aimed at comparing the dentoskeletal changes in patients with Class II division 1 malocclusion, treated with three types of fixed functional appliances.
A sample comprising 95 patients with the same malocclusion, retrospectively selected, and divided into four groups, was used: G1 consisted of 25 patients (mean age 12.77 ± 1.24 years) treated with Jasper Jumper appliance; G2, with 25 patients (mean age 12.58 ± 1.65 years) treated with the Herbst appliance; G3, with 23 patients (mean age 12.37 ± 1.72 years) treated with the Mandibular Protraction Appliance (MPA); and a Control Group (CG) comprised of 22 untreated subjects (mean age 12.66 ± 1.12 years). Intergroup comparison was performed with ANOVA, followed by Tukey test.
The Jasper Jumper and the Herbst group showed significantly greater maxillary anterior displacement restriction. The Jasper Jumper demonstrated significantly greater increase in the mandibular plane angle, as compared to the control group. The MPA group demonstrated significantly greater palatal inclination of the maxillary incisors. Vertical development of the maxillary molars was significantly greater in the Herbst group.
Despite some intergroup differences in the amount of dentoskeletal changes, the appliances were effective in correcting the main features of Class II malocclusions.
本研究旨在比较使用三种类型的固定功能矫治器治疗的安氏II类1分类错牙合患者的牙颌面变化。
回顾性选取95例患有相同错牙合的患者作为样本,并将其分为四组:G1组由25例患者(平均年龄12.77±1.24岁)组成,使用Jasper Jumper矫治器进行治疗;G2组有25例患者(平均年龄12.58±1.65岁),使用Herbst矫治器治疗;G3组有23例患者(平均年龄12.37±1.72岁),使用下颌前牵引矫治器(MPA)治疗;对照组(CG)由22例未接受治疗的受试者(平均年龄12.66±1.12岁)组成。采用方差分析进行组间比较,随后进行Tukey检验。
Jasper Jumper组和Herbst组在上颌前部移位限制方面表现出明显更大的效果。与对照组相比,Jasper Jumper组在下颌平面角方面显示出明显更大的增加。MPA组上颌切牙的腭向倾斜明显更大。Herbst组上颌磨牙的垂直生长明显更大。
尽管在牙颌面变化量方面存在一些组间差异,但这些矫治器在纠正安氏II类错牙合的主要特征方面是有效的。