title: Class III malocclusion with complex problems of lateral open bite and severe crowding successfully treated with miniscrew anchorage and lingual orthodontic brackets.
abstract: In this article, we report the successful use of miniscrews in a patient with an Angle Class III malocclusion, lateral open bite, midline deviation, and severe crowding. Simultaneously resolving such problems with conventional Class III treatment is difficult. In this case, the treatment procedure was even more challenging because the patient preferred to have lingual brackets on the maxillary teeth. As a result, miniscrews were used to facilitate significant asymmetric tooth movement in the posterior and downward directions; this contributed to the camouflage of the skeletal mandibular protrusion together with complete resolution of the severe crowding and lateral open bite. Analysis of the jaw motion showed that irregularities in chewing movement were also resolved, and a stable occlusion was achieved. Improvements in the facial profile and dental arches remained stable at the 18-month follow-up.
authors.affiliation: Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan. yanagita@md.okayama-u.ac.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Yanagita
authors.forename: Shingo
authors.initials: S
authors.lastname: Kuroda
authors.forename: Teruko
authors.initials: T
authors.lastname: Takano-Yamamoto
authors.forename: Takashi
authors.initials: T
authors.lastname: Yamashiro
mesh_terms: D000328:Adult; D001863:Bone Screws; D002508:Cephalometry; D002680:Chin / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000473:pathology; D008046:Lip / Q000473:pathology; D008310:Malocclusion / Q000628:therapy*; D008313:Malocclusion, Angle Class III / Q000628:therapy*; D008334:Mandible / Q000473:pathology / Q000503:physiopathology; D008335:Mandibular Condyle / Q000503:physiopathology; D008409:Mastication / Q000502:physiology; D009666:Nose / Q000473:pathology; D024343:Open Bite / Q000628:therapy*; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation*; D016382:Orthodontic Appliance Design; D016910:Orthodontic Brackets; D010347:Patient Care Planning; D011378:Prognathism / Q000628:therapy; D016059:Range of Motion, Articular / Q000502:physiology; D014087:Tooth Movement Techniques / Q000295:instrumentation / Q000379:methods; D016896:Treatment Outcome