title: Dynamic Analysis of New Bone Obtained by Nonvascular Transport Distraction Osteogenesis in Canines.
abstract: OBJECTIVE
  The aim of the present study was to construct a nonvascular transport disc to repair the canine mandibular defects model and to perform a dynamic analysis of the new bone obtained by nonvascular transport distraction osteogenesis (NTDO) in canines.
  
  
  METHODS
  Thirty adult dogs were randomly divided into 3 groups, with 10 dogs in each group. Canine mandibular defect models of NTDO were constructed. All the dogs were marked by tetracycline hydrochloride at a different distraction stage. The dogs were euthanized at 2, 4, and 12 weeks after distraction, and the quality ratio of calcium and phosphate for the new bone was measured using electron dispersive spectroscopy.
  
  
  RESULTS
  The canine mandibular defects were successfully repaired. Using tetracycline hydrochloride, we successfully observed the quality and speed of new bone formation. The quality ratio of calcium and phosphate was similar between the new bone formation and the original bone. The time spent using a nonvascular transport disc to repair mandibular defects was consistent with using a vascularized transport disc, and the quality of the new bone and the original bone was exactly the same.
  
  
  CONCLUSIONS
  When the bone mass is insufficient or the conditions are not suitable for a vascularized transport disc, the nonvascular transport disc can be used as an alternative.
authors.affiliation: Resident, Department of Oral and Maxillofacial Surgery, Guangxi Medical University College of Stomatology, Nanning, Guangxi, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Guo
authors.affiliation: Professor, Department of Oral and Maxillofacial Surgery, Guangxi Medical University College of Stomatology, Nanning, Guangxi, China. Electronic address: james249540408@hotmail.com.
authors.forename: Nuo
authors.initials: N
authors.lastname: Zhou
authors.affiliation: Resident, Department of Oral and Maxillofacial Surgery, Guangxi Medical University College of Stomatology, Nanning, Guangxi, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Lu
authors.affiliation: Associate Professor, Department of Oral and Maxillofacial Surgery, Guangxi Medical University College of Stomatology, Nanning, Guangxi, China.
authors.forename: Xuan-Ping
authors.initials: XP
authors.lastname: Huang
authors.affiliation: Resident, Department of Oral and Maxillofacial Surgery, Guangxi Medical University College of Stomatology, Nanning, Guangxi, China.
authors.forename: Xian-Fang
authors.initials: XF
authors.lastname: Jiang
authors.affiliation: Resident, Department of Oral and Maxillofacial Surgery, Guangxi Medical University College of Stomatology, Nanning, Guangxi, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
mesh_terms: D000818:Animals; D001857:Bone Matrix / Q000737:chemistry / Q000473:pathology; D001861:Bone Regeneration / Q000502:physiology; D002118:Calcium / Q000032:analysis; D004195:Disease Models, Animal; D004285:Dogs; D005456:Fluorescent Dyes; D008334:Mandible / Q000737:chemistry / Q000473:pathology / Q000502:physiology*; D008336:Mandibular Diseases / Q000601:surgery; D008855:Microscopy, Electron, Scanning; D010012:Osteogenesis / Q000502:physiology*; D019857:Osteogenesis, Distraction / Q000295:instrumentation / Q000379:methods*; D010710:Phosphates / Q000032:analysis; D011897:Random Allocation; D013052:Spectrometry, X-Ray Emission; D013752:Tetracycline; D013997:Time Factors
chemical_list: D005456:Fluorescent Dyes; D010710:Phosphates; D013752:Tetracycline; D002118:Calcium