Crack Propagation in Post-Core Rehabiltation of a Maxillary Central Incisor After Root Reconstruction

Casas, Estevam Barbosa de Las; Manzoli, Osvaldo L.; Mattos, C. M. A.

doi:10.5151/meceng-wccm2012-19072

Cited by 1 publication

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References 47 publications

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“…Prosthetic rehabilitation of endodontically treated teeth usually requires the use of an endodontic post and coronal core to enhance artificial crown retention. Las Casas et al (2014) presented a numerical predictive analysis of crack propagation, which may lead to fracture after root reconstruction. A scalar damage model based on the maximum principal stress criterion was used to predict crack propagation.…”

Section: Introductionmentioning

confidence: 99%

Finite element simulation of fracture in a restored premolar tooth using high aspect ratio elements

et al. 2018

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Introduction: The term cracked tooth syndrome refers to an incomplete fracture of a vital posterior tooth that involves the dentin and occasionally extends into the pulp. There is a very limited number of publications trying to model dentin crack growth using numerical techniques. Therefore, it is essential to numerically model this phenomenon in order to improve the clinical procedures. Methods: A 2D finite element model is proposed to simulate crack initiation and propagation in a restored premolar tooth. The geometric model was based on computed tomography data. A special finite element technique, named mesh fragmentation technique, is used to model and analyze the behavior of the tooth. This technique was used to model cracks in quasi-brittle materials based on the use of interface solid finite elements with high aspects ratio. A tension damage constitutive relation between stresses and strains consistent with the continuous strong discontinuity approach is used to describe crack formation and propagation. Results: The main aspects of modeling technique and procedures are explained in detail as well as the whole results, including both elastic and fracture analyses of the restored tooth. Conclusion: The results of the current fracture analysis show that, under various loading conditions, there is no crack initiation in the restored tooth under typical loading magnitude. However, in the case of tooth with a pre-existing crack, which can be aroused during the restoration process, a crack propagation was observed, while they did not reach a critical fracture state.

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Section: Introductionmentioning

confidence: 99%

Finite element simulation of fracture in a restored premolar tooth using high aspect ratio elements

et al. 2018

View full text Add to dashboard Cite

show abstract

Crack Propagation in Post-Core Rehabiltation of a Maxillary Central Incisor After Root Reconstruction

Abstract: Abstract. Prosthetic rehabilitation of endodontically treated teeth usually requires the use of

Cited by 1 publication

References 47 publications

Finite element simulation of fracture in a restored premolar tooth using high aspect ratio elements

Finite element simulation of fracture in a restored premolar tooth using high aspect ratio elements

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