title: Influence of dental restorative material properties on bond interface reliability: a finite element analysis.
abstract: BACKGROUND
  Varieties of restorative materials are widely used in dentistry. The aim of this study is to explore the influence of different dental restorative materials on bond interface reliability.
  
  
  METHODS
  A two-dimensional finite element analysis method was adopted to simulate the shear-bond efficacy test. The influence of elastic modulus and Poisson's ratio were investigated separately. Several dental restorative materials including resins, metals, and ceramics were analyzed in this study.
  
  
  RESULTS
  The deformation and peak equivalent stress level of the dentin-adhesive interface rose sharply following a decrease in the elasticity of restorative materials, especially those with a low elastic modulus range. The influence of the Poisson's coefficient was not significant. Ceramics and gold alloy were preferred to resin composite in restorations bearing extensive shear load during service.
  
  
  CONCLUSIONS
  Restorative materials with an elastic modulus similar to that of teeth are not always the best clinical choice. This research provides a helpful guide for the application of different restorative materials in clinical practice.
authors.affiliation: Department of Orthopedics, First Affiliated Hospital of the General Hospital of the People's Liberation Army, Beijing 100048, China.
authors.forename: Yan-tao
authors.initials: YT
authors.lastname: Zhao
authors.forename: Yu-mei
authors.initials: YM
authors.lastname: Zhang
authors.forename: Shu-xun
authors.initials: SX
authors.lastname: Hou
authors.forename: Liang
authors.initials: L
authors.lastname: Kong
authors.forename: Jun
authors.initials: J
authors.lastname: Lin
authors.forename: Yi-min
authors.initials: YM
authors.lastname: Zhao
authors.forename: Na
authors.initials: N
authors.lastname: Huo
mesh_terms: D001840:Dental Bonding; D003764:Dental Materials; D020342:Finite Element Analysis; D006801:Humans
chemical_list: D003764:Dental Materials