title: The influence of particulated autogenous bone on the early volume stability of maxillary sinus grafts with biphasic calcium phosphate: a randomized clinical trial.
abstract: BACKGROUND
  It is unknown whether autogenous bone impacts the grafts' stability when added to biphasic calcium phosphate (BCP) within the first six months of maxillary sinus augmentation (MSA).
  
  
  OBJECTIVE
  To investigate the volume stability of BCP alone and in mixtures with autogenous bone for MSA.
  
  
  METHODS
  Bilateral maxillary sinus augmentation was performed in eight patients in a split-mouth design using BCP at the control site and adding particulated autologous bone at the test site (BCPAB). Based on 16 computed tomography (CT) the volumetric changes were evaluated using the Voxim® software (version 6.3, IVS Technology GmbH, Chemnitz, Germany) by comparing the graft volumes within two weeks of the sinus lift procedure with CT data obtained six months later. Changes of the graft volumes were calculated and statistically significant differences between the two groups were evaluated.
  
  
  RESULTS
  Overall, the volumes decreased by 15% for BCP and 18% for BCPAB. The time-dependent decreases were statistically significant in both groups. Differences between the two groups were not statistically significant (p = .065).
  
  
  CONCLUSIONS
  An evident decrease of graft volume over the first 6 months of healing has to be expected irrespective of bone graft composite. Autogenous bone seems to have no evident impact on the volume decrease when added to BCP.
authors.affiliation: Department of Oral Surgery, Oral Radiology and Oral Medicine, School of Dentistry, University of Basel, Basel, Switzerland; Department of Oral Surgery and Radiology, School of Dentistry, Medical University of Graz, Graz, Austria.
authors.forename: Sebatian
authors.initials: S
authors.lastname: Kühl
authors.forename: Michael
authors.initials: M
authors.lastname: Payer
authors.forename: Robert
authors.initials: R
authors.lastname: Kirmeier
authors.forename: Angelika
authors.initials: A
authors.lastname: Wildburger
authors.forename: Stephan
authors.initials: S
authors.lastname: Acham
authors.forename: Norbert
authors.initials: N
authors.lastname: Jakse
mesh_terms: D018786:Bone Substitutes / Q000494:pharmacology*; D016025:Bone Transplantation / Q000379:methods*; D015921:Dental Implants; D005260:Female; D006801:Humans; D006882:Hydroxyapatites / Q000494:pharmacology*; D008297:Male; D008443:Maxillary Sinus / Q000000981:diagnostic imaging / Q000601:surgery; D008875:Middle Aged; D059546:Sinus Floor Augmentation / Q000379:methods*; D012984:Software; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D018786:Bone Substitutes; D015921:Dental Implants; D006882:Hydroxyapatites; C074950:hydroxyapatite-beta tricalcium phosphate
keywords: bone replacement materials; maxillary sinus floor augmentation; volume stability