title: Retrospective study of 100 autotransplanted teeth with complete root formation and subsequent orthodontic treatment.
abstract: BACKGROUND
  Autotransplantation has become a major therapeutic option for replacing missing teeth in adult orthodontic patients. However, little systematic information is available about the long-term stability of autotransplanted teeth with complete root formation after the application of an orthodontic force. The objective of this study was to investigate the outcomes of autotransplanted teeth with complete root formation that underwent orthodontic treatment.
  
  
  METHODS
  One hundred teeth, autotransplanted in 89 patients, were examined over a mean observation period of 5.8 years. Orthodontic force was applied with nickel-titanium wires 4 to 8 weeks after autotransplantation. Root resorption, ankylosis, mobility, pocket depth, and inflammation at the recipient site were investigated clinically and with radiographs.
  
  
  RESULTS
  The survival rate of the autotransplanted teeth was 93.0%. Abnormal findings were found in 29 teeth, including 7 lost teeth, for a success rate of 71.0%. Donor tooth type and occlusal condition of the donor tooth before transplantation were associated with abnormal findings.
  
  
  CONCLUSIONS
  The early application of orthodontic force may increase the success rate of autotransplanted teeth, and the type and presurgical occlusal condition of donor teeth affect the success rate.
authors.affiliation: Assistant professor, Orthodontic Science, Department of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kokai
authors.affiliation: Junior associate professor, Orthodontic Science, Department of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
authors.forename: Zuisei
authors.initials: Z
authors.lastname: Kanno
authors.affiliation: Clinical fellow, Orthodontic Science, Department of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
authors.forename: Sarina
authors.initials: S
authors.lastname: Koike
authors.affiliation: Postgraduate research student, Orthodontic Science, Department of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Uesugi
authors.affiliation: Private practice, Tokyo, Japan.
authors.forename: Yuzo
authors.initials: Y
authors.lastname: Takahashi
authors.affiliation: Professor and chairman, Orthodontic Science, Department of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan. Electronic address: t.ono.orts@tmd.ac.jp.
authors.forename: Takashi
authors.initials: T
authors.lastname: Ono
authors.affiliation: Professor emeritus, Tokyo Medical and Dental University, Tokyo, Japan.
authors.forename: Kunimichi
authors.initials: K
authors.lastname: Soma
mesh_terms: D000293:Adolescent; D000328:Adult; D064592:Autografts / Q000637:transplantation*; D002648:Child; D003722:Dental Alloys / Q000737:chemistry; D005260:Female; D005500:Follow-Up Studies; D006085:Graft Survival; D006801:Humans; D008297:Male; D008875:Middle Aged; D009532:Nickel / Q000737:chemistry; D009805:Odontogenesis / Q000502:physiology*; D009969:Orthodontic Wires; D009971:Orthodontics, Corrective; D010514:Periodontal Pocket / Q000209:etiology; D010518:Periodontitis / Q000209:etiology; D012189:Retrospective Studies; D012391:Root Resorption / Q000209:etiology; D014025:Titanium / Q000737:chemistry; D014070:Tooth / Q000637:transplantation*; D020254:Tooth Ankylosis / Q000209:etiology; D014086:Tooth Mobility / Q000209:etiology; D014092:Tooth Root / Q000254:growth & development*; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D003722:Dental Alloys; C040654:titanium nickelide; D009532:Nickel; D014025:Titanium