title: Pharyngeal airway changes following mandibular setback surgery.
abstract: Treatment of dentofacial deformities with jaw osteotomies has an effect on airway anatomy and therefore mandibular setback surgery has the potential to diminish airway size. The purpose of this study was to evaluate the effect of mandibular setback surgery on airway size. 8 consecutive patients were examined prospectively. All patients underwent mandibular setback surgery. Cephalometric analysis was performed preoperatively and 3 months post operatively with particular attention to pharyngeal airway changes. Pharyngeal airway size decreased considerably in all, patients thus predisposing to development of obstructive sleep apnea. Therefore, large anteroposterior discrepancies should be corrected by combined maxillary and mandibular osteotomies.
authors.affiliation: Department of Oral and Maxillo facial Surgery, Saveetha Dental College & Hospitals, Chennai 600 077.
authors.forename: Babu V
authors.initials: BV
authors.lastname: Ramesh
authors.forename: Narayanan
authors.initials: N
authors.lastname: Vinod
authors.forename: K
authors.initials: K
authors.lastname: Murugesan
mesh_terms: D000328:Adult; D002508:Cephalometry; D005500:Follow-Up Studies; D006801:Humans; D006928:Hyoid Bone / Q000473:pathology; D008297:Male; D008334:Mandible / Q000601:surgery*; D010027:Osteotomy / Q000379:methods*; D010160:Palate, Soft / Q000473:pathology; D010614:Pharynx / Q000473:pathology*; D011446:Prospective Studies; D012123:Pulmonary Ventilation / Q000502:physiology; D014059:Tongue / Q000473:pathology; D014716:Vertical Dimension