title: Metal-oxide nanoparticles for the reinforcement of dental restorative resins.
abstract: Metal oxide nanoparticles were synthesized from tantalum ethoxide and zirconium isopropoxide and subsequently surface grafted with vinyl silane and silyl methacrylate coupling agents. The nanoparticles were then dispersed into a commercial dental resin, and the composite was photocured into rigid three-point bend and fracture toughness specimens. The optically transparent/translucent cured composites demonstrated strength, toughness, and elastic modulus inferior to the unfilled material. Therefore, modifications in surface functionalization are being made to improve coupling and reduce interparticle associations.
authors: Department of Restorative Dentistry, University of Texas Health Science Center at San Antonio, USA.
authors: B
authors: B
authors: Furman
authors: H R
authors: HR
authors: Rawls
authors: S
authors: S
authors: Wellinghoff
authors: H
authors: H
authors: Dixon
authors: J
authors: J
authors: Lankford
authors: D
authors: D
authors: Nicolella
mesh_terms: D001672:Biocompatible Materials; D003188:Composite Resins / Q000138:chemical synthesis*; D003738:Dental Cements / Q000138:chemical synthesis*; D008422:Materials Testing; D008689:Methacrylates; D010087:Oxides / Q000737:chemistry; D010316:Particle Size; D012821:Silanes; D013499:Surface Properties; D013635:Tantalum / Q000737:chemistry; D015040:Zirconium / Q000737:chemistry
chemical_list: D001672:Biocompatible Materials; D003188:Composite Resins; D003738:Dental Cements; D008689:Methacrylates; D010087:Oxides; D012821:Silanes; D013635:Tantalum; D015040:Zirconium; C078151:tantalum oxide