Orthodontics and obstructive sleep apnea in children.

Children who suffer from respiratory problems and obstructive sleep apnea (OSA) commonly exhibit disturbances of craniofacial morphology. A significant number have nasal obstruction associated with a narrow maxilla; maxillary constriction may increase nasal resistance and alter the tongue posture, leading to narrowing of the retroglossal airway and OSA. Sixty children with a case history of oral breathing, snoring, and night time apneas were studied. An orthognathodontic investigation was performed using radiographs that included not only the usual examinations (posteroanterior cephalographs and intraoral radiographs) but also computed tomographic scans. This article discusses the materials and methods and the results of this study.