Stress distribution of bulk-fill resin composite in class II restorations

Pietro Ausiello, Stefano Ciaramella, Franklin Garcia-Godoy, Massimo Martorelli, Roberto Sorrentino, Antonio Gloria

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Purpose: To study the influence of the resin bonding layer thickness and the bulk filling material stiffness in adhesive class II mesio-occlusal-distal (MOD) restorations using numerical finite element analysis (FEA). Methods: Four 3D-FE models of teeth restored with different filling material stiffness and resin bonding layer thickness were built-up and analyzed. The 3D model of a sound lower molar was also analyzed and compared with restored ones. The tooth tissues . (enamel, dentin), dental restoration and bolus on the occlusal surface, was divided into 3D solid CTETRA elements with four grid points. The adhesive bonding around the dental restoration was modeled with shell elements. Polymerization shrinkage was simulated with a thermal expansion approach. Mechanical behavior of restored models in terms of stress and displacement distributions, under the combination effects of polymerization shrinkage and occlusal load (600 N), was analyzed. All the materials were assumed to behave as elastic materials throughout the entire deformation. Results: Numerical results show that the mechanical response of the restored models was very different compared to the sound tooth ones, where the stress was uniformly distributed from enamel to dentin with no critical stress concentration. In the

Original languageEnglish (US)
Pages (from-to)227-232
Number of pages6
JournalAmerican Journal of Dentistry
Volume30
Issue number4
StatePublished - Aug 1 2017

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Composite Resins
Tooth
Dentin
Dental Enamel
Polymerization
Adhesives
Dental Bonding
Finite Element Analysis
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

Ausiello, P., Ciaramella, S., Garcia-Godoy, F., Martorelli, M., Sorrentino, R., & Gloria, A. (2017). Stress distribution of bulk-fill resin composite in class II restorations. American Journal of Dentistry, 30(4), 227-232.

Stress distribution of bulk-fill resin composite in class II restorations. / Ausiello, Pietro; Ciaramella, Stefano; Garcia-Godoy, Franklin; Martorelli, Massimo; Sorrentino, Roberto; Gloria, Antonio.

In: American Journal of Dentistry, Vol. 30, No. 4, 01.08.2017, p. 227-232.

Research output: Contribution to journalArticle

Ausiello, P, Ciaramella, S, Garcia-Godoy, F, Martorelli, M, Sorrentino, R & Gloria, A 2017, 'Stress distribution of bulk-fill resin composite in class II restorations', American Journal of Dentistry, vol. 30, no. 4, pp. 227-232.
Ausiello P, Ciaramella S, Garcia-Godoy F, Martorelli M, Sorrentino R, Gloria A. Stress distribution of bulk-fill resin composite in class II restorations. American Journal of Dentistry. 2017 Aug 1;30(4):227-232.
Ausiello, Pietro ; Ciaramella, Stefano ; Garcia-Godoy, Franklin ; Martorelli, Massimo ; Sorrentino, Roberto ; Gloria, Antonio. / Stress distribution of bulk-fill resin composite in class II restorations. In: American Journal of Dentistry. 2017 ; Vol. 30, No. 4. pp. 227-232.
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