Comparison of upper airway volume and hyoid position after camouflage orthodontic or orthodontic-orthognathic treatment in patients with skeletal class Ⅲ malocclusion with normal-angle vertical pattern.

Patients in the orthodontic-orthognathic treatment group showed significantly greater changes in oropharyngeal cross-sectional area, palate angle, and tongue position compared with patients in the camouflage orthodontic treatment group. As individuals susceptible to OSAHS often exhibit mandibular retrusion and decreased minimum airway cross-sectional area, special attention should be paid to airway morphology changes when adopting orthodontic-orthognathic treatment to avoid adverse consequences.