title: Maxillary Sinus Augmentation with Autologous and Heterologous Bone Graft: A Clinical and Radiographic Report of Immediate and Delayed Implant Placement.
abstract: OBJECTIVE
  The aim of this study was to evaluate cumulative survival rate of implants placed on augmented maxillary sinus using a mixture of autologous bone harvested from the maxillary tuberosity and bovine-derived HA and to assess the height of the grafted material through radiographic evaluation.
  
  
  METHODS
  Thirty-five patients were treated with maxillary sinus augmentation and 93 implant fixtures were installed. The height of the augmented sinus and the gain of bone volume were measured by Cone Beam CT Scan and intraoral radiographs immediately after augmentation and up to 48 months subsequently. Changes in the height of the sinus graft material were calculated radiographically.
  
  
  RESULTS
  The cumulative survival rate was 98.92 % in all 93 implants. Additionally, normal healing process without any complication was observed in all patients. The original sinus height was a mean of 4.52 mm (range 2.0-6.4 mm) and the augmented sinus height was a mean of 14.1 mm (range 12.0-16.5 mm) after the surgery. The bone volume gain was a mean 9.613 mm (range 7-13 mm).
  
  
  CONCLUSIONS
  Within the limitations of this study, it would appear from the clinical and radiographic results that the sinus lift procedure with autologous bone graft harvested from the maxillary tuberosity combined with deproteinized bovine bone allows for a predictable outcome regarding the amount of bone formation in sinus floor augmentation and the immediate placement of implants, when possible, is recommended.
authors.affiliation: Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU-SUN (Second University of Naples), Naples, Italy ; Piazza Fuori Sant'Anna, 17, 81031 Aversa, Italy.
authors.forename: Mario
authors.initials: M
authors.lastname: Santagata
authors.affiliation: Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU-SUN (Second University of Naples), Naples, Italy.
authors.forename: Umberto
authors.initials: U
authors.lastname: Tozzi
authors.affiliation: Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU-SUN (Second University of Naples), Naples, Italy.
authors.forename: Gianpaolo
authors.initials: G
authors.lastname: Tartaro
authors.affiliation: Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU-SUN (Second University of Naples), Naples, Italy.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Santillo
authors.affiliation: Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU-SUN (Second University of Naples), Naples, Italy.
authors.forename: Corrado
authors.initials: C
authors.lastname: Giovanni
authors.affiliation: Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU-SUN (Second University of Naples), Naples, Italy.
authors.forename: Ettore
authors.initials: E
authors.lastname: Lamart
authors.affiliation: Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU-SUN (Second University of Naples), Naples, Italy.
authors.forename: Angelo
authors.initials: A
authors.lastname: Itro
authors.affiliation: Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU-SUN (Second University of Naples), Naples, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Colella
authors.affiliation: Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU-SUN (Second University of Naples), Naples, Italy.
authors.forename: Salvatore
authors.initials: S
authors.lastname: D'Amato
keywords: Autologous bone graft; Delayed implant placement; Dental implants; Heterologous bone graft; Immediate implant placement; Maxillary sinus; Survival rate