title: Treatment of ankylosed maxillary central incisors by single-tooth dento-osseous osteotomy and alveolar bone distraction.
abstract: When tooth ankylosis occurs in growing children, the ankylosed tooth fails to erupt and gradually positions itself below the occlusal plane. This causes functional and esthetic problems, and orthodontic treatment is often impossible. To clarify this problem, we developed a new treatment protocol for the movement of ankylosed teeth. This consists of single-tooth dento-osseous osteotomy and alveolar bone distraction using orthodontic multibracket appliances. A special distraction device is not required, thus reducing the burden to patients. Two cases in which an ankylosed maxillary central incisor was successfully treated with this protocol are presented.
authors.affiliation: Department of Oral-Maxillofacial Surgery, Dentistry, and Orthodontics, University of Tokyo Hospital, Tokyo, Japan.
authors.forename: Kazumi
authors.initials: K
authors.lastname: Ohkubo
authors.forename: Takafumi
authors.initials: T
authors.lastname: Susami
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Mori
authors.forename: Kouhei
authors.initials: K
authors.lastname: Nagahama
authors.forename: Naoko
authors.initials: N
authors.lastname: Takahashi
authors.forename: Hideto
authors.initials: H
authors.lastname: Saijo
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Takato
mesh_terms: D000293:Adolescent; D000539:Alveolar Process / Q000601:surgery*; D005260:Female; D006801:Humans; D007180:Incisor / Q000473:pathology* / Q000601:surgery; D008297:Male; D008437:Maxilla / Q000601:surgery*; D016910:Orthodontic Brackets; D019857:Osteogenesis, Distraction / Q000295:instrumentation / Q000379:methods; D010027:Osteotomy / Q000379:methods; D020254:Tooth Ankylosis / Q000601:surgery*; D014716:Vertical Dimension