title: Autotransplantation of an impacted premolar using collagen sponge after cyst enucleation.
abstract: BACKGROUND
  We report a case of successful autotransplantation of a premolar impacted with a dentigerous cyst and transplanted with collagen plugs for initial support.
  
  
  METHODS
  An 18-year-old man had an impacted premolar accompanied with a large dentigerous cyst. The tooth was extracted surgically and transplanted to an edentulous alveolar ridge, and a collagen sponge was inserted to ensure proper healing and initial support. Root canal treatment was performed 3 weeks after the surgery.
  
  
  RESULTS
  The previous lesion was healed, and the transplanted tooth was functional without any pathologic signs.
  
  
  CONCLUSIONS
  Our protocol provides a viable option for saving an impacted tooth in the case of cyst enucleation.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Korea University Ansan Hospital, Ansan, Korea.
authors.forename: Jae-Hyung
authors.initials: JH
authors.lastname: Lim
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Korea.
authors.forename: Jong-Ki
authors.initials: JK
authors.lastname: Huh
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Korea.
authors.forename: Kwang-Ho
authors.initials: KH
authors.lastname: Park
authors.affiliation: Department of Conservative Dentistry, Yonsei University College of Dentistry, Seoul, Korea. Electronic address: sujungshin@yuhs.ac.
authors.forename: Su-Jung
authors.initials: SJ
authors.lastname: Shin
mesh_terms: D000293:Adolescent; D000818:Animals; D001641:Bicuspid / Q000000981:diagnostic imaging / Q000187:drug effects / Q000637:transplantation*; D003094:Collagen / Q000494:pharmacology*; D003803:Dentigerous Cyst / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery / Q000628:therapy*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011161:Porifera; D014057:Tomography, X-Ray Computed; D014095:Tooth, Impacted / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery / Q000628:therapy*; D014182:Transplantation, Autologous; D014945:Wound Healing
chemical_list: D003094:Collagen
keywords: Autotransplantation; collagen sponge; cyst