title: Analysis of Resorption and Need for Overcorrection in Alveolar Distraction Osteogenesis.
abstract: OBJECTIVE
  The aim of this study was to evaluate the degree of resorption that occurs following a period of consolidation in alveolar distraction osteogenesis and assess the amount of overcorrection necessary to achieve the planned height.
  
  
  METHODS
  A retrospective observational study was conducted comprising 19 surgically treated patients, where a total of 19 extraosseous distractors were placed. All patients undergoing surgery had a panoramic radiograph and a computed tomography scan, both at the end of distraction and at the end of the consolidation period. To assess the degree of resorption, the distance from the mandibular border, maxillary sinus floor, or nasal floor to the limit of the crestal bone following consolidation was compared with the height recorded at the end of the distraction period.
  
  
  RESULTS
  Resorption occurred in all cases ranging from 7% to 25%.
  
  
  CONCLUSIONS
  The presence of resorption reported from this study indicates that an overcorrection of at least 20% may be necessary when distraction osteogenesis is performed.
authors.forename: David
authors.initials: D
authors.lastname: Reininger
authors.forename: Alfredo
authors.initials: A
authors.lastname: Rodriguez-Grandjean
authors.forename: Juan
authors.initials: J
authors.lastname: López-Quiles
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000473:pathology; D000540:Alveolar Ridge Augmentation / Q000009:adverse effects* / Q000379:methods; D001862:Bone Resorption / Q000209:etiology*; D003758:Dental Implantation, Endosseous; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery; D008443:Maxillary Sinus / Q000601:surgery; D008875:Middle Aged; D009066:Mouth, Edentulous / Q000601:surgery; D019857:Osteogenesis, Distraction / Q000009:adverse effects* / Q000379:methods; D011183:Postoperative Complications; D011862:Radiography, Panoramic; D012189:Retrospective Studies; D012307:Risk Factors