title: Alveolar crest regeneration using curvilinear dentoalveolar distraction osteogenesis: a preliminary study.
abstract: OBJECTIVE
  The objective of this study was to reconstruct alveolar crest at home position using distraction osteogenesis (DO) with a personalized curvilinear distractor designed through computer-aided technology.
  
  
  METHODS
  Five adult dogs were recruited and the maxillary alveolar bone from the first incisor to the first premolar was excised. The dentoalveolar segment adjacent to the defect was osteotomized as a bone transport disk. After 8 weeks of consolidation, the dogs were humanely killed, and the regenerated bone was analyzed.
  
  
  RESULTS
  The DO was successful in the experimental group. The radiographs and histology both verified new bone bridging distraction gap. However, the newly formed bone was located more internally and was not in original position.
  
  
  CONCLUSIONS
  The proposed method to reconstruct alveolar crest at home position is improper. The key point was how to maintain the distraction space and hold it at the home position. The barrier membrane technique may be used together with DO to resolve the problem.
authors.affiliation: Department of Prosthodontics, School of Stomatology, the Fourth Military Medical University, Xi'an, China.
authors.forename: Zhi-Hong
authors.initials: ZH
authors.lastname: Feng
authors.forename: Fang
authors.initials: F
authors.lastname: Su
authors.forename: Jin-Long
authors.initials: JL
authors.lastname: Zhao
authors.forename: Li-Bin
authors.initials: LB
authors.lastname: Zhou
authors.forename: Yan
authors.initials: Y
authors.lastname: Dong
authors.forename: Yi-Min
authors.initials: YM
authors.lastname: Zhao
mesh_terms: D000539:Alveolar Process / Q000473:pathology / Q000601:surgery*; D000818:Animals; D001857:Bone Matrix / Q000473:pathology; D001861:Bone Regeneration / Q000502:physiology*; D017076:Computer-Aided Design; D004285:Dogs; D004867:Equipment Design; D005240:Feasibility Studies; D005260:Female; D021621:Imaging, Three-Dimensional / Q000379:methods; D008297:Male; D008437:Maxilla / Q000473:pathology / Q000601:surgery*; D008567:Membranes, Artificial; D010012:Osteogenesis / Q000502:physiology; D019857:Osteogenesis, Distraction / Q000295:instrumentation* / Q000379:methods; D010027:Osteotomy / Q000379:methods; D013997:Time Factors; D036542:Tomography, Spiral Computed / Q000379:methods; D014584:User-Computer Interface
chemical_list: D008567:Membranes, Artificial