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The effect of rapid maxillary expansion on the upper airway’s aerodynamic characteristics
- Source :
- BMC Oral Health, BMC Oral Health, Vol 21, Iss 1, Pp 1-8 (2021)
- Publication Year :
- 2021
- Publisher :
- BMC, 2021.
-
Abstract
- Background The 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. Methods This 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 ms), and maximum wall shear stress (Pws) were compared by paired t-test and Wilcoxon test according to the normality test at T0 and T1. Results The aerodynamic characteristics in UA revealed no statistically significant difference after RME. The maximum Vms (m/s) decreased from 2.79 to 2.28 at expiration after RME (P = 0.057). Conclusion The aerodynamic characteristics were not significantly changed after RME. Further CFD studies with more cases are warranted.
- Subjects :
- Cfd simulation
Palatal Expansion Technique
Upper airway
Wilcoxon signed-rank test
Nose
Computational fluid dynamics
03 medical and health sciences
0302 clinical medicine
Maxilla
Medicine
Humans
Rapid maxillary expansion
Adenoid hypertrophy
Expiration
030223 otorhinolaryngology
General Dentistry
Retrospective Studies
Orthodontics
business.industry
Significant difference
medicine.medical_device
Aerodynamics
Cone-Beam Computed Tomography
Nasopharyngeal airway
lcsh:RK1-715
lcsh:Dentistry
Airway
business
030217 neurology & neurosurgery
Research Article
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- BMC Oral Health, BMC Oral Health, Vol 21, Iss 1, Pp 1-8 (2021)
- Accession number :
- edsair.doi.dedup.....afe536abe15f287adef0e0d5f6ac4f54