title: Subantral Augmentation with a 1/1 Alloplastic and Autologous Material Mixture. Histological Characteristics and Dimensional Stability of the Newly Formed Bone.
abstract: OBJECTIVE
  The maxillary sinus augmentation procedure is the most frequent method used to prepare the posterior maxillary area, with bone deficit, for the placement of dental implants. For this purpose, several types of materials have been used as bone grafts, each of these materials having a number of advantages and disadvantages. The present study is aimed at evaluating the histological and volumetric properties of an alloplastic and autologous material mixture.
  
  
  METHODS
  The study included 7 selected patients who underwent subantral bone augmentation with a 1/1 autologous and alloplastic material mixture. Subsequently, at the time of dental implant placement, biological samples were taken from the bone augmentation area and were histologically analyzed. The subantral bone resorption rate was also evaluated in parallel.
  
  
  RESULTS
  Histological examination evidenced the presence of residual amorphous material in the bone augmentation area. The mean bone resorption rate was 15.15%. The presence of a high bone resorption rate was correlated with the presence of a smaller residual amorphous material amount in the subantral bone augmentation area.
  
  
  CONCLUSIONS
  The association of autologous and alloplastic material for subantral bone augmentation improves the characteristics of the two material types.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Florin
authors.initials: F
authors.lastname: OniȘor-Gligor
authors.affiliation: Department of Oral and Maxillofacial Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Mihai
authors.initials: M
authors.lastname: Juncar
authors.affiliation: Department of Oral and Maxillofacial Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Grigore
authors.initials: G
authors.lastname: BăciuȚ
authors.affiliation: Department of Maxillofacial Implantology and Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Simion
authors.initials: S
authors.lastname: Bran
authors.affiliation: Department of Prosthetics, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Raluca-Iulia
authors.initials: RI
authors.lastname: Juncar
authors.affiliation: Department of Anatomy and Embryology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Dinu-Iuliu
authors.initials: DI
authors.lastname: DumitraȘcu
authors.affiliation: Department of Maxillofacial Implantology and Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Mihaela-Felicia
authors.initials: MF
authors.lastname: BăciuȚ
keywords: alloplastic graft; autologous graft; bone substitute; sinus lift