Mechanical Analysis of Restored-Tooth Structure Due to Polymerization Shrinkage of Composite Restoration

Abstract:

The finite element analysis is presented in this paper in order to investigate the influence of interphase properties on restored-tooth structure due to polymerization shrinkage of resin-based composite. The restoration-tooth interface is simulated using plane elements of varying material properties and thicknesses. The stress and displacement within restored-tooth structure built-up from the polymerization shrinkage of the restorative composite were computed accounting for the time-dependent, visco-elastic behaviour of the composite. It was found that a correlation exists between material and geometry properties at the restoration-tooth interface and higher shrinkage stresses on interphase due to polymerization shrinkage. The development trend of residual stress from polymerization shrinkage in the restored-tooth structure was discussed and forecasted.

• Periodical: Key Engineering Materials (Volumes 474-476)
• Pages: 1401-1405
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.474-476.1401
• Online since: April 2011
• Authors: Shui Wen Zhu, Jian Ping Fan, Guo Ping Chen
• Keywords: Composite Restoration, Finite Element Analysis (FEA), Interphase, Polymerization Shrinkage

References

[1] B.S. Dauvillier: Visco-elastic parameters of dental restorative materials during setting. J Dent Res Vol. 79(2000), pp.818-823.

DOI: 10.1177/00220345000790030601

[2] P. Ausiello, C.L. Davidson, etc.: Debonding of adhesively restored deep class II MOD restorations after functional loading. Am J Dent Vol. 12(1999), pp.84-88.

[3] W.M. Palin, G. Fleming, etc.: In vitro cuspal deflection and microleakage of maxillary premolars restored with novel low-shrink dental composites. Dent Mater Vol. 21(2005), pp.324-335.

DOI: 10.1016/j.dental.2004.05.005

[4] M.C. Peters: Comparison of two measurement techniques for clinical wear. J Dent Vol. 27(1999), pp.479-485.

[5] J.S. Rees, P.H. Jacobsen: Modelling the effects of enamel anisotropy with the finite element method. J Oral Rehabil Vol. 22(1995), pp.451-454.

DOI: 10.1111/j.1365-2842.1995.tb00800.x

[6] F. Osnat, M. Shlomo, ect.: Antibacterial properties of self-etching dental adhesive systems. J Am Dent Assoc Vol. 138(2007), pp.349-354.

[7] A.J. Feilzer, A.J. Degee, etc.: Quantitative determination of stress reduction by flow in composite restorations. Dental Materials Vol. 6(1990), pp.167-171.

DOI: 10.1016/0109-5641(90)90023-8

[8] P.F. Hkbsch, J. Middleton, ect.: Identification of the constitutive behaviour of dental composite cements during the curing. Computer Meth Biomech Biomed Engng Vol. 4(1999), pp.245-256.

[9] B. Lorenzo, M. Annalisa, etc.: Dental adhesion review: Aging and stability of the bonded interface. Dental materials Vol. 24(2008), pp.90-101.

[10] J. Li, H.Y. Li, etc.: A mathematical analysis of shrinkage stress development in dental composite restorations during resin polymerization. Dent Mater Vol. 24(2008), pp.925-931.

DOI: 10.1016/j.dental.2007.11.012