Orthognathic Surgeries and Pharyngeal Airway Space

Malocclusion Patients

twenty-four patients with dentoskeletal deformity of class III will be divided equally into two groups and will be subjected to orthognathic surgeries group A; will be treated by mandibular setback surgery while group B will be treated with bimaxillary orthognathic surgery in the form of mandibular setback and maxillary advancement surgeries. the total pharyngeal airway will be measured on lateral cephalometric radiographs, integrating retro-palatal and retro-glossal area, and statistically will be compared preoperative, immediate postoperative, and at 6 months post-surgically

Inclusion Criteria:

• dento-skeletal class III malocclusion which needed a surgical intervention with maxillary advancement surgery and/or mandibular set-back orthognathic surgery in the form of bilateral sagittal split osteotomy
• no previous orthognathic surgery

Exclusion Criteria:

• Patients with craniofacial syndromes.
• Medically compromised patients and patients with bone anomalies