Master of Science (MS)
First Committee Member
Second Committee Member
Third Committee Member
Fourth Committee Member
Number of Pages
Objectives: To compare the airway volume, the airway minimum cross-section area, the airway shape, and the airway related features to vertical growth pattern classifications in subjects with or without excessive daytime sleepiness (EDS). Introduction: The awareness, diagnosis, and management of sleep disordered breathing disorders has grown exponentially in the dental clinical setting. Excessive daytime sleepiness is a potential indicator for OSA. CBCT imaging of the airway and airway related features in patients with or without EDS may provide clinicians with a potential way to screen and detect SDB disorders in our everyday patients.
Materials and Methods: 282 patients from the University of Nevada Las Vegas Orthodontic Clinic (18+ in age, 101 males, 181 females) were classified into three groups based on their vertical skeletal patterns: Hypodivergent (79), normodivergent (143), hyperdivergent (60). Each patient was categorized as high or low risk for EDS based on their responses to the Epworth Sleepiness Scale. CBCT was used to compare the airway volume, minimum cross-section (MCSA), MCSA airway shape, and the airway related skeletal features of each patient.
Results: There were significant differences between the measured minimum cross-sectional area of the airway between patients diagnosed with hyperdivergent and hypodivergent vertical skeletal growth pattern (p
Conclusions: There are significant differences between vertical skeletal classification and minimum cross-sectional airway area and hyoid to mandibular plane measurements. Total airway volume has a positive relationship to the hyoid to mandibular plane measurement. Sleepiness classified by the Epworth Sleepiness Scale was not a significant predictor in airway volume, shape or airway related skeletal features.
Airway; Excessive Daytime Sleepiness (EDS); Hyoid; Obstructive Sleep Apnea (OSA); Vertical
University of Nevada, Las Vegas
Dao, Minhquan, "3-D Comparison of Upper Airway Volume, Shape, and Airway Related Features in Patients of Different Vertical Skeletal Classification With or Without Excessive Daytime Sleepiness" (2021). UNLV Theses, Dissertations, Professional Papers, and Capstones. 4135.
IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/
Available for download on Monday, May 15, 2028