Degree
Master of Clinical Science
Program
Orthodontics
Supervisor
Dr. Ali Tassi
2nd Supervisor
Dr. Michael Shimizu
Joint Supervisor
Abstract
Objective: To evaluate clinical and radiographic treatment outcomes after maxillomandibular advancement (MMA) surgery on subjects suffering from obstructive sleep apnea (OSA).
Materials and Methods: This was a retrospective cohort analysis. Subjects underwent pre- and post-surgical polysomnography (PSG) studies and were also asked to complete a subjective self-assessment via the Epworth Sleepiness Scale (ESS) questionnaire. Twenty-two patients (11 male, 11 female) met the inclusion criteria.
Results: The mean pre-surgical apnea-hypopnea index (AHI) score was 48.4 (+/-31.3) and mean ESS score was 11.6 (+/-4.6). After surgery, the mean AHI reduced to 14.0 (+/-15.0) and ESS reduced to 5.7 (+/-3.5). Treatment success was observed in 19 of 22 (86.4%) patients and 8 of 22 (36.4%) met the criteria for treatment cure.
Conclusions: MMA surgery is an effective treatment for patients suffering from OSA. Subjective sleepiness levels were significantly reduced after surgery. There were no pre- or post-surgical variables that acted as predictors of successful treatment.
Recommended Citation
Phee, Brian L., "Clinical Outcomes of Maxillomandibular Advancement Surgery for the Treatment of Obstructive Sleep Apnea" (2015). Electronic Thesis and Dissertation Repository. 2654.
https://ir.lib.uwo.ca/etd/2654