A finite element analysis of the stress at the restoration–tooth interface, comparing inlays and bulk fillings

Hubsch, Pierre; Middleton, J.; Knox, Jeremy

doi:10.1016/s0142-9612(99)00266-5

Cited by 34 publications

(11 citation statements)

References 8 publications

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“…The time-dependent Poisson ratio is interpolated based on the fact that polymers below the rubber point are (almost) incompressible and that the Poisson ratio of a solid composite has been measured to be 0.21 (Akinmade and Nicholson, 1995). Creep was modeled with an associative creep law (Hübsch, 1995) based on time-dependent apparent viscosity (Hübsch et al, 2000). Validation of the algorithms used in our model was described in a previous publication (Barink et al, 2003).…”

Section: Methodsmentioning

confidence: 99%

“…During the polymerization process, many factors, such as viscosity and Young's modulus, continuously change and will therefore influence the resulting stress. The polymerization process has been modeled in a simplified 2-D model (Hübsch et al, 2000). Although their axi-symmetric FE model was adequate for a Class I restoration, it cannot be applied to more complex geometric situations, such as MOD or cusp-replacing restorations.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Does Layering Minimize Shrinkage Stresses in Composite Restorations?

et al. 2003

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Polymerization shrinkage of resin composites may impair restoration longevity. It is hypothesized that layering, rather than bulk, techniques result in less stress in the tooth-restoration complex. The aim of this study was to compare shrinkage stresses for different restorative techniques used for cusp-replacing restorations with direct resin composite. In a 3-D FE model, the dynamic process of shrinkage during polymerization was simulated. Time-dependent parameters (shrinkage, apparent viscosity, Young's modulus, Poisson ratio, and resulting creep), which change during the polymerization process, were implemented. Six different restorative procedures were simulated: a chemically cured bulk technique, a light-cured bulk technique, and 4 light-cured layering techniques. When polymerization shrinkage is considered, a chemically cured composite shows the least resulting stress. The differences seen among various layering build-up techniques were smaller than expected. The results indicate that the stress-bearing locations are the interface and the cervical part of the remaining cusp.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Does Layering Minimize Shrinkage Stresses in Composite Restorations?

et al. 2003

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“…54 A Maxwell model as a function of curing time was used to represent the time-dependent, viscoplastic material properties of the composite and the cement. The normal and the tangential component of the traction vector produced by the inlay were substantially higher than the directly placed bulk restoration.…”

Section: Interfacial Stress In Restorationsmentioning

confidence: 99%

Nonlinear finite element analyses: Advances and challenges in dental applications

Wakabayashi

Ona

Suzuki

et al. 2008

Journal of Dentistry

142

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“…Various studies investigating the performance of ceramic restorations have been performed. Using the finite element analysis method, some investigators (Hubsch et al, 2000;Magne et al, 2002;Magne, 2007;Dejak & Mlotkowski, 2008) demonstrated that ceramic inlays reduced tension at the dentin-adhesive interface and may offer better protection against debonding at the dentin restoration interface, compared with the composite resin inlay. In this context, Reis et al (2010) investigated, through a 3D finite element analysis, the biomechanical behavior of indirect restored maxillary premolars based on type of preparation (inlay or onlay), and restorative material (composite resin, resin laboratory, reinforced ceramic with lithium disilicate or reinforced ceramic with leucite).…”

Section: Restorative Proceduresmentioning

confidence: 99%