title: Load-bearing capacity of handmade and computer-aided design--computer-aided manufacturing-fabricated three-unit fixed dental prostheses of particulate filler composite.
abstract: OBJECTIVE
  To compare handmade and computer-aided design-computer-aided manufacturing (CAD-CAM)-fabricated fixed dental prostheses (FDPs) composed of a particulate filler composite.
  
  
  METHODS
  Handmade FDPs were made of restorative composite (Z 100) and CAD-CAM-fabricated FDPs were made of commercial CAD-CAM blocks (VITA Temp) and two experimental CAD-CAM blocks of particulate filler composite. Experimental CAD composite A was prepared by mixing 31.2 wt.% of dimethacrylate resin with 68.7 wt.% of filler particles of barium oxide silicate (BaSiO(2)). Experimental CAD composite B was prepared by mixing 25.6 wt.% of dimethacrylate resin with 74.3 wt.% of filler particles of BaSiO(2). Six groups were fabricated (n = 6 in each); FDPs were statically loaded until final fracture.
  
  
  RESULTS
  Experimental CAD composites A and B revealed the highest load-bearing capacity of the FDPs, while Z 100 showed the lowest.
  
  
  CONCLUSIONS
  FDPs made of experimental CAD composite blocks showed higher load-bearing capacities than handmade commercial composites and commercial blocks.
authors.affiliation: Department of Prosthodontics, Faculty of Dentistry, Dicle University, Diyarbakır, Turkey. eminegb@hotmail.com
authors.forename: Emine
authors.initials: E
authors.lastname: Göncü Başaran
authors.forename: Emrah
authors.initials: E
authors.lastname: Ayna
authors.forename: Pekka K
authors.initials: PK
authors.lastname: Vallittu
authors.forename: Lippo V J
authors.initials: LV
authors.lastname: Lassila
mesh_terms: D017609:Barium Compounds; D003188:Composite Resins / Q000737:chemistry*; D017076:Computer-Aided Design; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis; D003830:Denture, Partial, Fixed; D003765:Models, Dental; D053758:Nanoparticles; D010087:Oxides; D010316:Particle Size; D017640:Silicates; D018709:Statistics, Nonparametric; D016474:Weight-Bearing; D015040:Zirconium
chemical_list: D017609:Barium Compounds; D003188:Composite Resins; D010087:Oxides; D017640:Silicates; C077606:barium oxide; D015040:Zirconium; C028541:zirconium oxide