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Cone-Beam Computed Tomography Analysis of Nasal Septum Changes Caused by Rapid Maxillary Expansion in Adolescent Patients with Mild to Moderate Septal Deviation Open Access


Other title
Rapid Maxillary Expansion
Cone Beam Computed Tomography
Nasal Septum
Type of item
Degree grantor
University of Alberta
Author or creator
Aziz, Tehnia
Supervisor and department
Flores-Mir, Carlos (Dentistry)
Examining committee member and department
Carey, Jason (Mechanical Engineering)
Lagravere, Manuel (Dentistry)
Major, Michael (Dentistry)
Medical Sciences-Orthodontics

Date accepted
Graduation date
Master of Science
Degree level
Objectives: The objective of this thesis was to analyze cone beam computed tomography (CBCT) images to measure potential changes in nasal septal deviation (NSD) from rapid maxillary expansion (RME) treatment in a sample of adolescent patients. Methods: This retrospective study involved 26 patients that incidentally presented with mild to severe septal deviation and treated for transverse maxillary constriction with RME. A control group of 7 patients was also identified without RME treatment that presented with mild to severe baseline deviation. CBCT images were taken at T1 (before appliance insertion) and T3 (6 months after appliance removal) and were analyzed to measure changes in nasal septal deviation. Results: Repeated measures ANOVA and non-parametric Wilcoxon related samples test resulted in no significant changes in NSD with or without RME treatment and irrespective of baseline deviation. Conclusion: Rapid maxillary expansion treatment did not result in significant changes in NSD.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
Aziz T, Biron V, Ansari K, and Flores-Mir C, “Measurement tools for the diagnosis of nasal septal deviation: a systematic review,” Journal of Otolaryngology, Head and Neck Surgery 2014, vol 43, issue 1, doi:10.1186/1916-0216-43-11Aziz T, Ansari K, Lagravere MO, Major MP, Flores-Mir C. Effect of non-surgical maxillary expansion on the nasal septum deviation: a systematic review. Progress in Orthodontics. 2015;16:15. doi:10.1186/s40510-015-0084-y.

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