title: Modified maxillary protraction headgear for the correction of class III skeletal malocclusion with anterior open bite.
abstract: This is a case report of a 10-year-old girl with a hyper divergent class III skeletal malocclusion caused primarily due to maxillary retrognathism. Treatment involved the use of a modified maxillary protraction face mask that carries the point of force application extra orally to pass through the centre of resistance of the maxillary dentoalveolar complex. After 8 months, the maxilla was displaced anteriorly without rotation. Maxillary occlusal plane showed a clockwise rotation. Maxillary incisors were extruded and retroclined. Mandible was displaced downward and backward. Another 18 months were required for fixed orthodontic treatment to achieve perfect interdigitation.
authors.affiliation: Department of Orthodontics, Margalla College of Dentistry, Rawalpindi, Pakistan. haroon77@hotmail.com
authors.forename: Haroon Shahid
authors.initials: HS
authors.lastname: Qazi
authors.forename: Al-Taki
authors.initials: AT
authors.lastname: Amjad
mesh_terms: D002648:Child; D005115:Extraoral Traction Appliances; D005260:Female; D006801:Humans; D008313:Malocclusion, Angle Class III / Q000628:therapy*; D024343:Open Bite / Q000628:therapy*