ArticleClinical oral investigations2025
Posterior airway changes during and after Herbst appliance treatment.
Article in Clinical oral investigations, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Pharyngeal Airway Volume Changes and Patient-Reported Breathing and Sleep Comfort Following Class II Functional Orthodontic Treatment, Predominantly the Herbst Therapy, in Growing Children: A Retrospective CBCT Study.Children (Basel, Switzerland) · 2026Article
- Craniofacial Analysis of Lateral Cephalograms in Obstructive Sleep Apnea-An Exploratory Case-Control Study.Diagnostics (Basel, Switzerland) · 2026Article
- Pharyngeal Airway Changes After Functional Orthodontic Treatment in Growing Class II Patients: A Retrospective Cephalometric Comparison of Twin Block, RPE and AMCOPLife (Basel, Switzerland) · 2025Article
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Authors and funding
4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
objectivesHerbst appliance treatment results in posterior airway space (PAS) increase. The published data, however, is based on rather small samples and shows large inter-individual variation. Therefore, the current aim was to investigate PAS changes during and after Herbst plus subsequent multibracket appliance (MBA) treatment in a retrospective cohort study and to search for possible pre-treatment influencing factors. MATERIALS AND
methods503 former Class II:1 patients (overjet = 7.8 ± 2.4 mm, ANB angle = 5.0 ± 2.1°) who had undergone treatment at 13.8 ± 3.4 years (Department for Orthodontics, University of Giessen, Germany). Cephalograms from before (T0), after 24.9 ± 9.2 months of treatment (T1) and 26.1 ± 8.0 months after treatment (T2) were analysed for PAS changes (area-size and linear distances p, t, pC2, pC3, pC4. In addition, possible influencing pre-treatment characteristics were evaluated: overjet, ANB angle, Wits appraisal, ML/NSL angle, ArGoGn angle, age and skeletal maturity.
resultsOn average, the PAS area increased by 23% during Herbst-MBA treatment (T1-T0) and remained constant (± 0%) thereafter (T2-T1). All linear distances also increased (6-19%) during T1-T0 and showed further increase (1-7%) during T2-T1. For all variables a large inter-individual variation existed. With regard to possible influencing factors on PAS changes, significant associations were observed for pre-treatment age and Wits appraisal of the patients.
conclusionsPAS increases during Herbst-MBA treatment. For none of the assessed variables, relapse occurred afterwards. Young age and a large Wits appraisal were determined to be beneficial for PAS enlargement. CLINICAL RELEVANCE: Herbst-MBA treatment seems to have a positive effect in the majority of Class II patients with reduced PAS.
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