title: Anterior maxillary alveolar distraction osteogenesis: a prospective 5-year clinical study.
abstract: OBJECTIVE
  Anterior maxillary alveolar vertical distractions were followed for a 5-year period of time.
  
  
  METHODS
  A total of 30 vertical distractions were done in 28 patients. Two patients had both anterior maxilla and anterior mandibular distractions for a total of 30 distractions. Two distraction techniques were used: an implant device (3i) and an orthodontic screw device (Osteomed) for orthodontic attachment. Both devices enabled some horizontal as well as vertical movement. The average net vertical distraction was 6.5 mm, but the average anterior horizontal movement was less than 2 mm.
  
  
  RESULTS
  Eighty-four implants were placed, but 8 implants failed to integrate.
  
  
  CONCLUSIONS
  All failed implants had been placed in poor quality bone that needed bone grafting. The most common restoration was a fixed prosthesis supported by implants; the longest follow-up post loading was 4.4 years.
  
  
  CONCLUSIONS
  This clinical study gives additional evidence in favor of the stability and utility of vertical distraction procedures in the maxillary esthetic alveolar zone.
authors.affiliation: Baylor College of Dentistry, Department of Oral and Maxillofacial Surgery, Rowlett, Texas, USA. drjensen@dsl-mail.com
authors.forename: Ole T
authors.initials: OT
authors.lastname: Jensen
authors.forename: Rex
authors.initials: R
authors.lastname: Cockrell
authors.forename: Lee
authors.initials: L
authors.lastname: Kuhike
authors.forename: Charles
authors.initials: C
authors.lastname: Reed
mesh_terms: D000540:Alveolar Ridge Augmentation / Q000379:methods*; D001863:Bone Screws; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D017268:Dental Prosthesis Retention; D019094:Dental Prosthesis, Implant-Supported; D019232:Dental Restoration Failure; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor; D008437:Maxilla / Q000601:surgery*; D009967:Orthodontic Appliances; D019857:Osteogenesis, Distraction / Q000295:instrumentation* / Q000379:methods*; D011446:Prospective Studies; D014716:Vertical Dimension
chemical_list: D015921:Dental Implants