Numerical investigation of macro- and micro-mechanics of a ceramic veneer bonded with various cement thicknesses using the typical and submodeling finite element approaches

Finite element sub-modeling analyses of damage to enamel at the incisor enamel/adhesive interface upon de-bonding for different orthodontic bracket bases

“…This FE approach has been used to investigate local mechanical responses within a larger global model in both the orthopedic and dental fields (Simmons et al, 2001;Gupta et al, 2004a, b;Liu et al, 2009). Hence, integrating precision 3-D surface profile measurements and FE sub-modeling was developed to elucidate the micro-mechanics at the enamel/adhesive interface associated with enamel loss under various orthodontic bracket de-bonding forces using different bracket bases.…”

“…The difficulty arises from the fact that the resin tag dimensions are much smaller than those of the global configuration. Hence, submodeling has an advantage over the typical FE approach in that it uses a local micro-model with boundary conditions that are based on the pre-analyzed global model results to determine the local mechanical responses, which can be employed to investigate the mechanical behavior of the adhesive phase (Simmons et al, 2001;Gupta et al, 2004a, b;Liu et al, 2009).…”

3D Micro-Crack Propagation Simulation at Enamel/Adhesive Interface Using FE Submodeling and Element Death Techniques

“…From a previous study, the results from an interfacial micro-model with the resin tags using the submodeling technique can obtain reasonable estimates in a ceramic veneer with various adhesive thicknesses. 19 Cormier et al 6 also pointed out that the macro-model was adequate to obtain a reasonable estimate for the normalized stress; however, the micromodel could be used to calculate good estimates for the regions of unusually large stress gradients. Hence, reasonable estimation solutions could be obtained with a micro-model than the macro-model in this study.…”

“…This FE technique has been applied to investigate the mechanical responses at local details within the larger global model in orthopedic and dental fields. 14,15,19,32 Note that the submodeling technique is valid only for solid elements and shell elements. The principle behind submodeling assumes that the cut boundaries are far enough away from the stress concentration region.…”

Early resin luting material damage around a circular fiber post in a root canal treated premolar by using micro-computerized tomographic and finite element sub-modeling analyses

“…Hence, sub-modeling has an advantage over the typical FE approach in that it uses a local micromodel with boundary conditions that are based on the preanalyzed global model results to determine the local mechanical responses. This approach can be employed to investigate the mechanical behavior of the adhesive phase (Gupta et al, 2004;Liu et al, 2009;Lin et al, 2011). Moreover, a nondestructive analysis using micro-computerized tomography (micro-CT) can be used for a three-dimensional (3D) analysis of the tooth, post-space volumes and void/bubble morphology to generate an accurate 3D reconstructed FE model (Grande et al, 2008).…”