title: Long-term evaluation and clinical outcomes of children with dental transplants in Temuco city, Chile.
abstract: OBJECTIVE
  To assess the clinical and radiographic outcomes of 36 transplanted teeth and the possible factors affecting the results.
  
  
  METHODS
  In 26 children, 36 teeth transplants were performed. The main reason for transplantations was the loss of anterior teeth due to trauma; 80.5% of transplanted teeth were immature bicuspids. The transplants were clinically and radiolographycally monitored in respect of pulp vitality, root canal obliteration, periradicular changes and root formation. Fisher Exact Test and Kaplan-Meier analyses were performed to determine the association between the variables and estimation of survival rates, respectively.
  
  
  RESULTS
  Thirty (83.3%) of the transplantations were recorded as successful and six as unsuccessful (16.7%). The survival rate was 97.2% during average time of 47.5 months ± 27.8 SD. Only one tooth had been extracted and 5 had survived in not ideal conditions. The majority of immature transplanted teeth developed pulp canal obliteration.
  
  
  CONCLUSIONS
  Factors associated to successful outcome were immature root formation of donor tooth and short flexible splinting period. The main factor associated to failure was replacement resorption. The surgical technique did not present statistical significance in the clinical outcome. Tooth transplantation has shown high success and survival rates, and should be considered as a real option in growing patients.
authors.affiliation: Paediatric Dentistry Postgraduate Programme, Paediatric dentistry and Orthodontic Department, Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile - Dental Service, Regional Clinical Hospital, Temuco, Chile.
authors.forename: J A
authors.initials: JA
authors.lastname: Díaz
authors.affiliation: Paediatric Dentistry Postgraduate Programme, Paediatric dentistry and Orthodontic Department, Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile.
authors.forename: G A
authors.initials: GA
authors.lastname: Jans
authors.affiliation: Paediatric Dentistry Postgraduate Programme, Paediatric dentistry and Orthodontic Department, Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile.
authors.forename: C E
authors.initials: CE
authors.lastname: Zaror
mesh_terms: D000293:Adolescent; D000848:Anodontia / Q000601:surgery; D001641:Bicuspid / Q000002:abnormalities / Q000637:transplantation; D002648:Child; D003731:Dental Caries / Q000601:surgery; D003782:Dental Pulp / Q000502:physiology; D003790:Dental Pulp Necrosis / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000002:abnormalities / Q000293:injuries; D008137:Longitudinal Studies; D008297:Male; D009805:Odontogenesis / Q000502:physiology; D010027:Osteotomy / Q000379:methods; D010483:Periapical Diseases / Q000209:etiology; D011183:Postoperative Complications; D012391:Root Resorption / Q000209:etiology; D015996:Survival Rate; D014070:Tooth / Q000637:transplantation*; D016388:Tooth Loss / Q000601:surgery; D014092:Tooth Root / Q000502:physiology; D020390:Tooth Socket / Q000601:surgery; D016896:Treatment Outcome; D055815:Young Adult