Comparison of upper pharyngeal airway space in Class II and Class III malocclusion cases
Introduction: Evaluation of pharyngeal airway has an important role in diagnosis and treatment planning in patients with obstructive sleep apnea and dentofacial deformity. The purpose of this study was to evaluate the widths of the upper pharyngeal airways in patients with skeletal Class II and Class III malocclusions.
Material and Methods: The sample comprised of sixty subjects divided into 2 groups (30 Class II and Class III respectively). The upper pharyngeal airway was assessed according to McNamara’s airways analysis. Independent t-test was used to compare upper airway space in both skeletal classes.
Results: Independent t-test showed a statistically significant difference (p < 0.05) in upper airway space between two groups showing Class II cases to have narrower upper airway space as compared to Class III cases.
Conclusions: Subjects with Class II skeletal malocclusions have significantly narrower upper pharyngeal airways than those with Class III malocclusions.