Statistical failure analysis of adhesive resin cement bonded dental ceramics

Wang, Yaou; Katsube, N.; Seghi, Robert R.; Rokhlin, S. I.

doi:10.1016/j.engfracmech.2006.11.006

Cited by 29 publications

(16 citation statements)

References 24 publications

(57 reference statements)

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“…In addition, Rosenstiel et al have found that resin cement can significantly increase the flexural strength of a glass ceramic when compared to glass ionomer cements [19]. In this study, the flexural strength of etched ceramic increased significantly after the application of resin cement, even for acid etching time as short as 20 s. Investigators suggested that the use of silane and a layer of resin luting agent can increase the strength of glass ceramic due to crack bridging [20,21]. At the molecular level, surface cracks are manifested as gaps in the arrangement of the ions.…”

Section: Fig 2 -Sem Images Of Ceramic/cement Interface When the Sampmentioning

confidence: 54%

Effect of etching time and resin bond on the flexural strength of IPS e.max Press glass ceramic

2014

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Section: Fig 2 -Sem Images Of Ceramic/cement Interface When the Sampmentioning

confidence: 54%

Effect of etching time and resin bond on the flexural strength of IPS e.max Press glass ceramic

2014

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“…Experimentally determined surface flaw size distribution and FE stress calculations are combined on the basis of fracture mechanics based statistical failure probability model to predict failure probability distribution. The theoretical predictions are verified against experimental failure probability data based on single-cycle indentation tests on flat samples [24,25] . Using experimentally determined ceramic fatigue data, this method is extended to predict lifetime under cyclic loadings [12] .…”

Section: Introductionmentioning

confidence: 88%

3D statistical failure analysis of monolithic dental ceramic crowns

Nasrin

Katsube

Seghi

et al. 2016

Journal of Biomechanics

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For adhesively retained ceramic crown of various types, it has been clinically observed that the most catastrophic failures initiate from the cement interface as a result of radial crack formation as opposed to Hertzian contact stresses originating on the occlusal surface. In this work, a 3D failure prognosis model is developed for interface initiated failures of monolithic ceramic crowns. The surface flaw distribution parameters determined by biaxial flexural tests on ceramic plates and point-to-point variations of multi-axial stress state at the intaglio surface are obtained by finite element stress analysis. They are combined on the basis of fracture mechanics based statistical failure probability model to predict failure probability of a monolithic crown subjected to single-cycle indentation load. The proposed method is verified by prior 2D axisymmetric model and experimental data. Under conditions where the crowns are completely bonded to the tooth substrate, both high flexural stress and high interfacial shear stress are shown to occur in the wall region where the crown thickness is relatively thin while high interfacial normal tensile stress distribution is observed at the margin region. Significant impact of reduced cement modulus on these stress states is shown. While the analyses are limited to single-cycle load-to-failure tests, high interfacial normal tensile stress or high interfacial shear stress may contribute to degradation of the cement bond between ceramic and dentin. In addition, the crown failure probability is shown to be controlled by high flexural stress concentrations over a small area, and the proposed method might be of some value to detect initial crown design errors.

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“…Moreover, to further improve the standardization of the study set-up resin composite root dies were fabricated in series using a resin composite with a standardized silicon mold instead of prepared natural teeth. A resin composite with an elastic modulus (22 GPa) similar to that of the dentinal tissue was employed as substitute for dentin [9,11,18,19].…”

Section: Discussionmentioning

confidence: 99%