Department of Orthodontics, University of Giessen, Giessen, Germany.
Private Practice, Stuttgart, Germany.
Eur J Orthod. 2022 Mar 30;44(2):117-124. doi: 10.1093/ejo/cjab021.
The aim of this retrospective investigation was to generate representative data on the efficiency and outcome quality of Class II:2 Herbst-Multibracket appliance (Herbst-MBA) treatment.
All Class II:2 patients who had started Herbst-MBA treatment at the study centre since 1986 were included. Study casts from before treatment, after Herbst-MBA treatment, and (if available) after ≥24 months of follow-up were evaluated using standard occlusal variables, the Peer Assessment Rating (PAR)-Index, and the Ahlgren-Scale.
During treatment, the pre-treatment PAR score was reduced from 23.6 ± 7.66 to 5.6 ± 3.85 (n = 192); during the follow-up period, a slight increase to 6.0 ± 3.60 occurred (n = 127). The percentage of patients who could be assigned to the PAR category 'greatly improved' was 30% after treatment and 33% after follow-up; only 1%, respectively, 2% had to be assigned to the category 'worse/no different'. The outcome ratings according to the Ahlgren-Scale revealed 20% excellent, 32% good, 46% acceptable, and 2% unsuccessful results.
Retrospective study design with follow-up data not available from all subjects and no data from untreated controls.
Herbst-MBA is an efficient treatment approach in orthodontic care of Class II:2 malocclusions. High-quality results (mean/median PAR score: 5.6/5.0) with very good short-term stability (2.2 years' follow-up) were achieved. Unfortunately, no appropriate control group or groups, where other treatment approaches had been applied, exist.
本回顾性研究旨在提供关于 II 类 2 分类 Herbst-Multibracket 矫治器（Herbst-MBA）治疗的效率和结果质量的代表性数据。
本研究纳入了自 1986 年以来在研究中心接受 Herbst-MBA 治疗的所有 II 类 2 分类患者。使用标准的咬合变量、同伴评估评分（PAR）指数和 Ahlgren 量表评估治疗前、治疗后以及（如有）随访≥24 个月的研究模型。
治疗期间，治疗前的 PAR 评分从 23.6 ± 7.66 降至 5.6 ± 3.85（n = 192）；在随访期间，略有增加至 6.0 ± 3.60（n = 127）。治疗后可归为 PAR 评分“大大改善”类别的患者百分比为 30%，随访后为 33%；仅分别有 1%和 2%的患者被归为“更差/无差异”类。根据 Ahlgren 量表进行的结果评价显示，20%为优秀，32%为良好，46%为可接受，2%为不成功。
本研究为回顾性设计，并非所有受试者均有随访数据，且无未经治疗的对照组数据。
Herbst-MBA 是治疗 II 类 2 分类错颌畸形的有效方法。在治疗结束时，可获得高质量的结果（平均/中位数 PAR 评分：5.6/5.0），且具有非常好的短期稳定性（2 年随访）。遗憾的是，目前尚无适当的对照组或其他已应用过的治疗方法的对照组。
