ArticleBMC oral health2021
The effect of rapid maxillary expansion on the upper airway's aerodynamic characteristics.
Article in BMC oral health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Computational fluid dynamics analysis of the respiratory function of orthodontic patients. A scoping review.BMC medical imaging · 2026Article
- Relationship Between Maxillary Transverse Deficiency and Respiratory Problems: A Systematic Review of the Effectiveness of Devices over the Past Decade.Journal of clinical medicine · 2025Review
- Mechanical mechanism study of upper airway collapse and twin block treatment in a patient with mandibular retrognathia using fluid-structure interaction simulation.BMC oral health · 2025Article
- Short-term outcomes in the upper airway with tooth-bone-borne vs bone-borne rapid maxillary expanders.BMC oral health · 2023Article
- The influence of mouth opening on pharyngeal pressure loss and its underlying mechanism: A computational fluid dynamic analysis.Frontiers in bioengineering and biotechnology · 2022Article
- Aerodynamic characteristics in upper airways among orthodontic patients and its association with adenoid nasopharyngeal ratios in lateral cephalograms.BMC medical imaging · 2021Article
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Authors and funding
5 authors.
Funding
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Abstract
backgroundThe effect of rapid maxillary expansion (RME) on the upper airway (UA) has been studied earlier but without a consistent conclusion. This study aims to evaluate the outcome of RME on the UA function in terms of aerodynamic characteristics by applying a computational fluid dynamics (CFD) simulation.
methodsThis retrospective cohort study consists of seventeen cases with two consecutive CBCT scans obtained before (T0) and after (T1) RME. Patients were divided into two groups with respect to patency of the nasopharyngeal airway as expressed in the adenoidal nasopharyngeal ratio (AN): group 1 was comprised of patients with an AN ratio < 0.6 and group 2 encompassing those with an AN ratio ≥ 0.6. CFD simulation at inspiration and expiration were performed based on the three-dimensional (3D) models of the UA segmented from the CBCT images. The aerodynamic characteristics in terms of pressure drop (ΔP), maximum midsagittal velocity (V
resultsThe aerodynamic characteristics in UA revealed no statistically significant difference after RME. The maximum V
conclusionThe aerodynamic characteristics were not significantly changed after RME. Further CFD studies with more cases are warranted.
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