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Exploratory work on the effects of rapid maxillary expansion on nasal airway dimensions Open Access


Other title
acoustic rhinometry
nasal airway
rapid maxillary expansion
Type of item
Degree grantor
University of Alberta
Author or creator
Gordon, Jillian Madeline
Supervisor and department
Major, Paul (Dentistry)
Examining committee member and department
Witmans, Manisha (Medicine)
Carey, Jason (Mechanical Engineering)
Heo, Giseon (Dentistry)
Medical Sciences

Date accepted
Graduation date
Master of Science
Degree level
Objectives: To investigate whether any changes in nasal cavity dimensions or subjective report of nasal symptoms exist after rapid maxillary expansion using two types of expansion appliances, comparing results with an untreated control group. Methods: Subjects were randomly assigned into one of three groups: tooth-borne or bone-anchored expander or untreated control. Acoustic rhinometry was used to measure minimal cross-sectional area and volume of the nasal cavity over three timepionts for treatment subjects and two timepoints for control subjects, taken along with the NOSE Instrument survey. Results: No significant changes in nasal cavity dimension or subjective reports were found in subjects treated with tooth- or bone-anchored appliances compared to control subjects over three timepoints. In addition, non-significant correlation was observed between nasal airway dimensional change and subject symptoms. Conclusions: Rapid maxillary expansion does not result in change of i) nasal airway dimensions or ii) the sensation of nasal symptoms.
License granted by Jillian Gordon ( on 2009-11-01T18:53:19Z (GMT): 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. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein 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.
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