改良Herbst矫治器联合舌侧矫治器治疗期间的临床并发症

Clinical complications during treatment with a modified Herbst appliance in combination with a lingual appliance.

作者信息

Wiechmann Dirk, Vu Julius, Schwestka-Polly Rainer, Helms Hans-Joachim, Knösel Michael

机构信息

Orthodontic Practice, Lindenstrasse 44, Bad Essen, 49152, Germany.

Department of Orthodontics, Hannover Medical School (MHH), Hannover, 30625, Germany.

出版信息

Head Face Med. 2015 Sep 9;11:31. doi: 10.1186/s13005-015-0088-3.

DOI:10.1186/s13005-015-0088-3

PMID:26353793

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4564960/

Abstract

OBJECTIVE

To assess the types and frequencies of clinical complications experienced when using a modified lingual Herbst appliance and to compare these with those associated with conventional Herbst appliances reported in the literature.

METHODS

Treatment records for 35 consecutive subjects treated during the observation period from October 2013 to August 2014 who received a combination of a lingual appliance and a modified Herbst appliance (WIN, DW LingualSystems) were assessed for complications linked to Herbst treatment phase. Complications were analyzed descriptively, and complication-free intervals were calculated using Kaplan-Meier plots. To enable a comparison with data reported in the literature, the cumulative treatment time for all subjects was divided by the total number of complications.

RESULTS

71.4% of Herbst treatments were free from complications (n = 25). Complications were seen on 13 occasions (8 instances of Herbst attachment loosening, 5 L-Pin fractures). Most of these complications could be fixed chair side utilizing simple clinical measures. Considering all complications as identical statistical events, the percentage of treatments free from complications would be 88% for 100 days, 70% for 200 days and 56.8% for 300 days. For severe complications, the averaged complication-free treatment interval was found to be 27.8 months.

CONCLUSION

In terms of clinical sturdiness, and taking into consideration the step-wise mode of activation used here as well as the differences in the design of the various Herbst appliances, the WIN-Herbst appliance was found to be superior to comparable vestibular Herbst appliances, as well as the banded Herbst appliance belonging to the preceding generation of customized lingual systems. Success in treatment of non-compliant Angle Class II correction is considered to have better predictability using the modified anchorage strategy of the WIN-Herbst appliance.

摘要

目的

评估使用改良型舌侧Herbst矫治器时出现的临床并发症类型及频率，并与文献报道的传统Herbst矫治器相关并发症进行比较。

方法

对2013年10月至2014年8月观察期内连续治疗的35例患者的治疗记录进行评估，这些患者接受了舌侧矫治器与改良型Herbst矫治器（WIN，DW LingualSystems）联合治疗，分析与Herbst治疗阶段相关的并发症。对并发症进行描述性分析，并使用Kaplan-Meier图计算无并发症间隔时间。为了与文献报道的数据进行比较，将所有受试者的累计治疗时间除以并发症总数。

结果

71.4%的Herbst治疗无并发症（n = 25）。共出现13次并发症（8次Herbst附件松动，5次L型销骨折）。这些并发症大多可在椅旁采用简单临床措施解决。将所有并发症视为相同统计事件，100天时无并发症治疗的百分比为88%，200天时为70%，300天时为56.8%。对于严重并发症，平均无并发症治疗间隔时间为27.8个月。