title: Single-Tooth Osteotomy Combined Wide Linear Corticotomy Under Local Anesthesia for Correcting Anterior Protrusion With Ectopically Erupted Canine.
abstract: BACKGROUND
  This article presents the alternative surgical treatments of both anterior protrusion by carrying out retraction on mandibular anterior fragment, meanwhile applying retraction force on maxilla anterior teeth and ectopically erupted canine with using platelet-rich fibrin (PRF).
  
  
  METHODS
  Anterior segmental osteotomy was combined with linear corticotomy under local anesthesia. The correction of right ectopic canine was achieved through 2 stages. First, dento-osseous osteotomy on palatal side was performed. Then second osteotomy with immediate manual repositioning of the canine with concomitant first premolar extraction was enhanced with PRF, which was prepared by centrifuging patient's blood, applied into buccal side of high canine during osteotomy. Mandibular retraction was accomplished by anterior segmental osteotomy.
  
  
  RESULTS
  Single-tooth osteotomy is a more effective surgical method for ankylosed or ectopically erupted tooth in orthodontic treatment. It can reduce the total orthodontic treatment time and root resorption, 1 common complication. Significant improved bone formation was seen with the addition of PRF on noncritical size defects in the animal model. It is reasonable to think that PRF can promote bone regeneration. So early bone formation also can reduce the complication such as postoperative infection.
  
  
  CONCLUSIONS
  As an alternative to anterior protrusion and ectopically erupted canine treatment, segmental osteotomy and corticotomy combined platelet-rich plasma can enhance orthodontic treatment outcome.
authors.affiliation: *Department of Orthodontics †Department of Oral and Maxillofacial Surgery, Graduate School, Kyung Hee University, Seoul, Korea.
authors.forename: Nur Serife
authors.initials: NS
authors.lastname: Iskenderoglu
authors.forename: Byung-Joon
authors.initials: BJ
authors.lastname: Choi
authors.forename: Kyung Won
authors.initials: KW
authors.lastname: Seo
authors.forename: Yeon-Ji
authors.initials: YJ
authors.lastname: Lee
authors.forename: Baek-Soo
authors.initials: BS
authors.lastname: Lee
authors.forename: Seong-Hun
authors.initials: SH
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D000772:Anesthesia, Local / Q000009:adverse effects; D003481:Cuspid / Q000002:abnormalities / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D008334:Mandible / Q000000981:diagnostic imaging / Q000601:surgery*; D008437:Maxilla / Q000601:surgery; D052280:Orthodontic Anchorage Procedures / Q000379:methods*; D010027:Osteotomy / Q000379:methods*