title: Atypical extraction of maxillary central incisors.
abstract: This case report describes a Class I crowded malocclusion with an ankylosed maxillary central incisor that was in infraocclusion and labially displaced. The patient had wide maxillary teeth, and the option of extracting the maxillary central incisors followed by space closure, with lateral incisors substituting for the central incisors, was chosen.
authors.affiliation: Professor and head, Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil. Electronic address: jansong@travelnet.com.br.
authors.forename: Guilherme
authors.initials: G
authors.lastname: Janson
authors.affiliation: Postgraduate student, Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil.
authors.forename: Danilo Pinelli
authors.initials: DP
authors.lastname: Valarelli
authors.affiliation: Private practice, Bauru, Brazil.
authors.forename: Fabrício Pinelli
authors.initials: FP
authors.lastname: Valarelli
authors.affiliation: Professor, Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil.
authors.forename: Marcos Roberto
authors.initials: MR
authors.lastname: de Freitas
authors.affiliation: Associate professor, Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil.
authors.forename: Arnaldo
authors.initials: A
authors.lastname: Pinzan
mesh_terms: D000293:Adolescent; D002508:Cephalometry; D005890:Gingivectomy; D006801:Humans; D007180:Incisor / Q000473:pathology / Q000601:surgery*; D008297:Male; D008311:Malocclusion, Angle Class I / Q000628:therapy*; D019516:Orthodontic Space Closure / Q000379:methods*; D012391:Root Resorption / Q000209:etiology / Q000601:surgery; D020254:Tooth Ankylosis / Q000209:etiology / Q000601:surgery*; D014084:Tooth Avulsion / Q000601:surgery; D014081:Tooth Extraction / Q000379:methods*; D014090:Tooth Replantation / Q000009:adverse effects