title: Novel application of the 2-piece orthodontic C-implant for temporary crown restoration after orthodontic treatment.
abstract: BACKGROUND
  This article reports the use of an orthodontic mini-implant for a temporary crown restoration in a small edentulous space after limited orthodontic treatment.
  
  
  METHODS
  Two clinical cases are presented: a 23-year-old woman and a 14-year-old boy. In the adult patient, a 2-piece orthodontic C-implant (Cimplant, Seoul, Korea) was placed in a 3-mm wide edentulous space to build up a temporary crown restoration after a short orthodontic treatment to regain space for a missing mandibular right permanent lateral incisor. In the boy, a C-implant was placed in the space resulting from an avulsed maxillary right permanent lateral incisor to prevent aggressive alveolar bone resorption after dental trauma. Both patients were followed for more than 4 years of retention to evaluate the stability of the temporary crown restoration built up on the orthodontic mini-implants.
  
  
  RESULTS
  Both patients had successful long-term results, confirmed by clinical and radiographic examinations. Both were pleased with the results and plan to retain the orthodontic mini-implant temporary crown restoration until they are ready for a permanent restoration later.
  
  
  CONCLUSIONS
  A 2-piece orthodontic C-implant system can be used to maintain edentulous space after active orthodontic treatment.
authors.affiliation: Division of Periodontology, Department of Dentistry, National Medical Center of Korea, Seoul, Korea.
authors.forename: Do-Min
authors.initials: DM
authors.lastname: Jeong
authors.forename: Bohm
authors.initials: B
authors.lastname: Choi
authors.forename: Hyeran
authors.initials: H
authors.lastname: Choo
authors.forename: Ju-Hyung
authors.initials: JH
authors.lastname: Kim
authors.forename: Kyu-Rhim
authors.initials: KR
authors.lastname: Chung
authors.forename: Seong-Hun
authors.initials: SH
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D016301:Alveolar Bone Loss / Q000517:prevention & control; D003442:Crowns; D000044:Dental Abutments; D003794:Dental Restoration, Temporary / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000293:injuries; D008297:Male; D008437:Maxilla / Q000601:surgery; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation*; D016348:Osseointegration / Q000502:physiology; D014084:Tooth Avulsion / Q000534:rehabilitation; D016388:Tooth Loss / Q000534:rehabilitation; D014087:Tooth Movement Techniques; D016896:Treatment Outcome; D055815:Young Adult