title: [A clinical study on orthodontic treatment after tooth autotransplantation].
abstract: OBJECTIVE
  To evaluate the pulp vitality, the periodontal condition and the success rate of autotransplanted teeth after orthodontic treatment.
  
  
  METHODS
  A total of 20 permanent teeth (one of them had been treated by root canal therapy), 17 with completely developed roots and 3 with developing roots, were autotransplanted to the region of missing teeth in 16 admitted patients. Orthodontic treatment was carried out in all cases. Clinical and radiographic evaluation of the transplanted teeth was done.
  
  
  RESULTS
  The average time of postoperative orthodontic treatment was 1.9 months. In all, one autotransplanted tooth was lost because of periodontal disease during follow-up. Eight autotransplanted ones had positive electric pulp testing (EPT) response. Fifteen out of 20 autotransplanted teeth were surrounded by newly-formed periodontal space with normal size and lamina dura. The numbers of surviving and successful autotransplanted teeth were 19 and 15, respectively, after an average observation period of 24.5 months.
  
  
  CONCLUSIONS
  Orthodontic treatment of autotransplanted teeth was acceptable and the pulp vitality of the teeth might be preserved.
authors.affiliation: Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China.
authors.forename: Wei-tao
authors.initials: WT
authors.lastname: Liu
authors.forename: Yan-heng
authors.initials: YH
authors.lastname: Zhou
authors.forename: Li-xin
authors.initials: LX
authors.lastname: Qiu
authors.forename: Peng
authors.initials: P
authors.lastname: Ding
authors.forename: Yan-mei
authors.initials: YM
authors.lastname: Dong
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009971:Orthodontics, Corrective; D014070:Tooth / Q000637:transplantation*; D014182:Transplantation, Autologous; D055815:Young Adult