title: Functional regulator therapy in treatment of skeletal open-bite.
abstract: A study was performed on the functional regulator, Fränkel appliance (FR4) in order to test its efficiency in the treatment of patients with skeletal open-bite. Pretreatment and post-treatment cephalometric evaluation was done on 11 patients and 10 untreated patients with skeletal open-bite. The results showed that the FR4 appliance was mainly effective on changes in dentoalveolar structures and produced no significant skeletal changes. The degree of anterior open-bite was decreased significantly in the treatment group in comparison with the controls (p < 0.01), due to vertical eruption of upper and lower incisors and retraction of maxillary incisors.
authors.affiliation: Department of Orthodontics, Faculty of Dentistry, Hacettepe University, Turkey.
authors.forename: B
authors.initials: B
authors.lastname: Haydar
authors.forename: A
authors.initials: A
authors.lastname: Enacar
mesh_terms: D002508:Cephalometry; D002648:Child; D003818:Dentition, Mixed; D006801:Humans; D007180:Incisor / Q000473:pathology; D008310:Malocclusion / Q000473:pathology / Q000503:physiopathology / Q000628:therapy*; D008334:Mandible / Q000254:growth & development / Q000473:pathology; D008437:Maxilla / Q000254:growth & development / Q000473:pathology; D008445:Maxillofacial Development; D016382:Orthodontic Appliance Design; D017289:Orthodontic Appliances, Functional; D013997:Time Factors; D014716:Vertical Dimension