ArticleBMC oral health2022
The effect of orthodontic vertical control on the changes in the upper airway size and tongue and hyoid position in adult patients with hyperdivergent skeletal class II.
Article in BMC oral health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 13 citations in OpenAlex.
- Effects of lingual and labial orthodontic treatment on the airway in adult with extraction of first premolars: a retrospective cohort study.BMC oral health · 2026Article
- A Modified Expandable Headgear-Activator for Combined Adenotonsillar Hypertrophy and Bimaxillary Constriction: Insights from a 9-Year Follow-Up.Clinical, cosmetic and investigational dentistry · 2026Article
- Comparison of craniofacial skeletal morphology in pediatric obstructive sleep apnea-hypopnea syndrome patients with class II and class III malocclusions: a retrospective cross-sectional study.Frontiers in pediatrics · 2026Article
- Three-dimensional assessment of pharyngeal airway hyoid bone and craniocervical changes after stabilization splint treatment in temporomandibular disorder patients.Scientific reports · 2025Article
- Expert consensus on orthodontic treatment of protrusive facial deformities.International journal of oral science · 2025Review
- Associations of tongue and hyoid position, tongue volume, and pharyngeal airway dimensions with various dentoskeletal growth patterns.PloS one · 2025Article
- Clear Aligners in the Growing Patient: A Systematic Review.Children (Basel, Switzerland) · 2024Review
- Comparison of invisalign mandibular advancement and twin-block on upper airway and hyoid bone position improvements for skeletal class II children: a retrospective study.BMC oral health · 2023Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAt present, there are still controversies about the influence of orthodontic treatment on the size of upper airway and the position of hyoid bone. We investigated the effect of orthodontic vertical control therapy on the size of the upper airway and position of the tongue and hyoid bone in adult patients with hyperdivergent skeletal Class II.
methodsOverall, 15 adults with hyperdivergent skeletal Class II and normal occlusion, respectively, were selected as the experimental and control groups. The angle and line of the craniofacial structure, upper airway, hyoid bone position and three-dimensional (3D) upper airway indexes were measured using the Uceph 4.2.1 standard version and Mimics 21.0 software, respectively. The paired t-test, Wilcoxon symbol rank test, t-test of two independent samples, two independent sample nonparametric tests, Mann-Whitney U test, Pearson correlation analysis, the Univariate linear regression analysis and Multiple linear regression analysis were performed.
resultsAfter treatment, the S-Go/N-Me (%) and the MP-SN and XiPm-SN angles were significantly different (P < 0.01). The U-MPW and PAS significantly increased (P < 0.05), sagittal diameter L
conclusionsAfter the orthodontic vertical control therapy in patients with hyperdivergent skeletal Class II, the upper airway only underwent adaptive changes during treatment without substantial size changes, the position of tongue body and hyoid bone did not change significantly. Furthermore, compared with normal occlusion, the velopharyngeal segment airway of patients with hyperdivergent skeletal Class II remains narrow and long after treatment.
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