Shrinkage Stress Analysis of the Restored-Tooth Structure by the Finite Element Method

Abstract:

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The purpose of this paper is to investigate the influence of interphase properties on restored-tooth structure due to polymerization shrinkage of resin-based composite. The stress within the restored tooth structure built up from the polymerization shrinkage of the restorative composite was computed accounting for the time-dependent and viscoelastic behavior of the composite. A sensitivity study was performed to examine the relative influence of geometric and material parameters of an interphase on the shrinkage stress development. It was found that a correlation exists between material and geometry properties at the restoration-tooth interface and higher shrinkage stresses were located at the interphase due to polymerization shrinkage. The varying material and geometry properties of restoration-tooth interface seemed to have a conclusive effect on the interfacial stress system, as well as on the longevity of the restoration.

Info:

Periodical:

Advanced Materials Research (Volumes 146-147)

Edited by:

Sihai Jiao, Zhengyi Jiang and Jinglong Bu

Pages:

1792-1796

DOI:

10.4028/www.scientific.net/AMR.146-147.1792

Citation:

G. P. Chen et al., "Shrinkage Stress Analysis of the Restored-Tooth Structure by the Finite Element Method", Advanced Materials Research, Vols. 146-147, pp. 1792-1796, 2011

Online since:

October 2010

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Price:

$35.00

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