title: Sinus lift augmentation using autogenous bone grafts and platelet-rich plasma: radiographic results.
abstract: OBJECTIVE
  Autologous bone grafting and sinus floor elevation is a widely accepted method for reconstruction of the atrophic maxilla. The aim of this investigation was to examine the influence of platelet-rich plasma (PRP) on bone grafting in sinus floor augmentation.
  
  
  METHODS
  A prospective, controlled, randomized study including 34 patients undergoing sinus augmentation before implant placement was designed. The intervention group had additional treatment with PRP. Radiographic imaging was performed by computerized tomography (CT) and panoramic radiography 4 months after augmentation and before implant placement.
  
  
  RESULTS
  Bone density showed no significant increase when PRP was used in combination with autologous bone grafting compared with autologous bone alone.
  
  
  CONCLUSIONS
  This study showed no positive effect of PRP on bone density in CT evaluation when used in sinus floor augmentation. Bone density in the CT showed no correlation to histomorphometric evaluation.
authors.affiliation: Department of Maxillofacial Surgery, University of Giessen, Giessen, Germany. heidrun.schaaf@uniklinikum-giessen.de
authors.forename: Heidrun
authors.initials: H
authors.lastname: Schaaf
authors.forename: Philipp
authors.initials: P
authors.lastname: Streckbein
authors.forename: Stefan
authors.initials: S
authors.lastname: Lendeckel
authors.forename: Kathrin Sophie
authors.initials: KS
authors.lastname: Heidinger
authors.forename: Peter
authors.initials: P
authors.lastname: Rehmann
authors.forename: Rolf-Hasso
authors.initials: RH
authors.lastname: Boedeker
authors.forename: Hans-Peter
authors.initials: HP
authors.lastname: Howaldt
mesh_terms: D015519:Bone Density; D016025:Bone Transplantation / Q000379:methods*; D003758:Dental Implantation, Endosseous / Q000379:methods; D019232:Dental Restoration Failure; D006801:Humans; D008437:Maxilla / Q000601:surgery; D008443:Maxillary Sinus / Q000000981:diagnostic imaging / Q000601:surgery*; D013516:Oral Surgical Procedures, Preprosthetic / Q000379:methods*; D053657:Platelet-Rich Plasma; D011446:Prospective Studies; D011862:Radiography, Panoramic; D018709:Statistics, Nonparametric; D014057:Tomography, X-Ray Computed