title: Lower incisor retraction with a modified corticotomy.
abstract: This case report demonstrates the orthodontic treatment facilitated with a new conservative corticotomy technique to shorten the treatment time during lower incisor retraction. The patient was a 22-year-old woman with protrusive profile, severe anterior crowding, an anterior crossbite, and Class III dental relationship. Orthodontic treatment consisted of the extraction of four first premolars with maximum anchorage. A modified corticotomy technique, in which the lingual vertical and subapical horizontal cuts were eliminated, was combined with orthodontic therapy for the retraction of the lower anterior teeth. Corticotomy-facilitated orthodontics dramatically reduced the treatment time without any adverse effects on the periodontium and the vitality of the teeth. The main advantages of this modified corticotomy technique were the elimination of the lingual cuts and flap, the reduction of surgery time, and minimum discomfort to the patient. At the end of active orthodontic therapy, balanced occlusion and facial esthetics were achieved.
authors.affiliation: Hacettepe University Faculty of Dentistry, Department of Orthodontics, Ankara, Turkey. dgermec@gmail.com
authors.forename: Derya
authors.initials: D
authors.lastname: Germeç
authors.forename: Bahadir
authors.initials: B
authors.lastname: Giray
authors.forename: Ilken
authors.initials: I
authors.lastname: Kocadereli
authors.forename: Ayhan
authors.initials: A
authors.lastname: Enacar
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000601:surgery; D001641:Bicuspid / Q000601:surgery; D002508:Cephalometry; D005260:Female; D006801:Humans; D007180:Incisor / Q000473:pathology*; D008313:Malocclusion, Angle Class III / Q000601:surgery / Q000628:therapy; D008334:Mandible / Q000601:surgery*; D009969:Orthodontic Wires; D010027:Osteotomy / Q000379:methods; D010347:Patient Care Planning; D012690:Serial Extraction; D014087:Tooth Movement Techniques / Q000295:instrumentation / Q000379:methods*