title: Orthodontic treatment of the transposition of a maxillary canine and a first premolar: a case report.
abstract: BACKGROUND
  Transposition is an anomaly of tooth position, the most frequent of which involves the canine and the first maxillary premolar. We describe the orthodontic treatment of a unilateral transposition of an upper canine and an upper right first premolar in the permanent dentition.
  
  
  METHODS
  A 12-year-old Caucasian boy presented with transposition of his upper right canine and upper right first premolar. He had combined surgical-orthodontic treatment to correct the transposition and to obtain a Class I relationship between the molar and canine. This treatment resolved the dental crowding and achieved good functional and aesthetic results.
  
  
  CONCLUSIONS
  In transposition, the choice of the most suitable treatment depends on the occlusion, level of dental crowding, aesthetics, position of the radicular apices, and the specific needs of the patient. In this case, orthodontic alignment of the transposed teeth into their physiological position achieved all of our objectives and our patient was satisfied with the aesthetic results obtained.
authors.affiliation: Department MeSVA, School of Dentistry, University of L'Aquila, L'Aquila, Italy. teresadinoi@hotmail.it.
authors.forename: Dinoi Maria
authors.initials: DM
authors.lastname: Teresa
authors.affiliation: Department MeSVA, School of Dentistry, University of L'Aquila, L'Aquila, Italy. stefano.mummolo@cc.univaq.it.
authors.forename: Mummolo
authors.initials: M
authors.lastname: Stefano
authors.affiliation: Department MeSVA, School of Dentistry, University of L'Aquila, L'Aquila, Italy. annalisamonaco@yahoo.it.
authors.forename: Monaco
authors.initials: M
authors.lastname: Annalisa
authors.affiliation: Department MeSVA, School of Dentistry, University of L'Aquila, L'Aquila, Italy. enrico.marchetti@cc.univaq.it.
authors.forename: Marchetti
authors.initials: M
authors.lastname: Enrico
authors.affiliation: Department of Clinical Science and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy. vincenzo.campanella@uniroma2.it.
authors.forename: Campanella
authors.initials: C
authors.lastname: Vincenzo
authors.affiliation: Department MeSVA, School of Dentistry, University of L'Aquila, L'Aquila, Italy. giuseppe.marzo@cc.univaq.it.
authors.forename: Marzo
authors.initials: M
authors.lastname: Giuseppe
mesh_terms: D001641:Bicuspid / Q000002:abnormalities*; D002648:Child; D003481:Cuspid / Q000002:abnormalities*; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000601:surgery*; D014087:Tooth Movement Techniques / Q000379:methods*