title: Clinical evaluation of demineralized bone allograft for sinus lifts in humans: a clinical and histologic study.
abstract: OBJECTIVE
  Severe alveolar bony resorption in the edentulous posterior maxilla and pneumatization of the maxillary sinus wall make traditional implant placement impossible in the posterior maxilla. To reconstruct the severely resorbed maxilla for dental implant placement, 1 successful technique is to elevate the maxillary sinus floor using demineralized bone matrix (DBM) grafts. The purpose of this study was to evaluate a histologic and histomorphometric evaluation of DBM grafts in the human maxilla.
  
  
  METHODS
  Nine months after grafting, at the time of dental implantation, biopsy samples were taken from the grafted areas of 8 patients and were analyzed histologically.
  
  
  RESULTS
  All the sinus lifts were successful in the clinical study conducted after implantation. Resorption of the graft materials and new bone formation were observed, and there was direct deposition of bone on the surface of the graft particles.
  
  
  CONCLUSIONS
  The results of this study indicate that limited maxillary sinus lift with DBM graft material is a clinically reliable preimplant procedure.
authors: Department of Oral & Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju, Republic of Korea.
authors: Young-Hoon
authors: YH
authors: Won
authors: Su-Gwan
authors: SG
authors: Kim
authors: Ji-Su
authors: JS
authors: Oh
authors: Sung-Chul
authors: SC
authors: Lim
mesh_terms: D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging / Q000601:surgery; D001706:Biopsy; D001853:Bone Marrow / Q000473:pathology; D001857:Bone Matrix / Q000637:transplantation; D016025:Bone Transplantation / Q000379:methods* / Q000473:pathology; D003758:Dental Implantation, Endosseous / Q000379:methods; D019094:Dental Prosthesis, Implant-Supported; D005500:Follow-Up Studies; D006801:Humans; D006820:Hyaluronic Acid / Q000627:therapeutic use; D008437:Maxilla / Q000000981:diagnostic imaging / Q000601:surgery; D008875:Middle Aged; D016348:Osseointegration / Q000502:physiology; D010010:Osteoclasts / Q000473:pathology; D010011:Osteocytes / Q000473:pathology; D010012:Osteogenesis / Q000502:physiology; D010027:Osteotomy / Q000379:methods; D059745:Piezosurgery / Q000379:methods; D011862:Radiography, Panoramic; D059546:Sinus Floor Augmentation / Q000379:methods*; D014184:Transplantation, Homologous; D055682:Viscoelastic Substances / Q000627:therapeutic use
chemical_list: D055682:Viscoelastic Substances; D006820:Hyaluronic Acid