Changes in the volume, height, and cross sectional area of the upper airway after orthodontic extraction treatment in adults with Class II and hyperdivergent pattern (n = 18).

<p>* P<0.05</p><p>** P<0.01</p><p>^a Wilcoxon signed rank test</p><p>Changes in the volume, height, and cross sectional area of the upper airway after orthodontic extraction treatment in adults with Class II and hyperdivergent pattern (n = 18).