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生物医学工程评论综述™
SJR: 0.207 SNIP: 0.376 CiteScore™: 0.79

ISSN 打印: 0278-940X
ISSN 在线: 1943-619X

生物医学工程评论综述™

DOI: 10.1615/CritRevBiomedEng.v28.i34.150
pages 439-443

Metal-Oxide Nanoparticles for the Reinforcement of Dental Restorative Resins

Benjamin Furman
Department of Restorative Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX
H. Ralph Rawls
Department of Restorative Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX
Stephen Wellinghoff
Division of Chemistry and Chemical Engineering
Hong Dixon
Division of Chemistry and Chemical Engineering
James Lankford
Division of Materials and Structures, Southwest Research Institute, San Antonio, TX
Dan Nicolella
Division of Materials and Structures, Southwest Research Institute, San Antonio, TX

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.


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