The aim of this study was to compare 3D airway changes after 2-jaw orthognathic surgery(maxilla Le-Fort I advancement and mandible BSSO setback) on skeletal Class III malocclusion patient using computed tomography.
Class III malocclusion
An 18-year-old female came with the concern about protrusive chin and anterior crossbite with inability to incise. Clinical examination revealed Class III malocclusion with overjet -2.5mm. Cephalometric analysis showed SNA 78o, SNB 81o and ANB -3o, which was diagnosed as skeletal class III
This case report found that orthognathic surgery with maxilla advancement and mandible setback on skeletal Class III patient would not lead to the narrowing of airway. On the contrary, proper surgical plan will improve the airway after surgery.