Contraction behaviors of dental composite restorations — Finite element investigation with DIC validation

Chuang, Shu Fen; Chang, Chih Han; Chen, Terry Yuan Fang

doi:10.1016/j.jmbbm.2011.07.014

Cited by 34 publications

(27 citation statements)

References 45 publications

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“…The shrinkage was simulated on FE models as the analogy of thermal expansion as previously suggested (Chuang et al . ). Tensile stress in the enamel surrounding the composite filling reached 2.35 MPa in model 4, whilst in other models the stress intensity was lower.…”

Section: Discussionmentioning

confidence: 97%

“…Still, the results are in the same range of values as the results from studies analysing the shrinkage stress in Class I and Class II MOD preparations (Asmussen & Peutzfeldt , Chuang et al . ). Findings of this study are also in agreement with the study of Barink et al .…”

Section: Discussionmentioning

confidence: 97%

“…), σ CS = −384 MPa (Haines ); for composite resin σ TS = 77 MPa and σ CS = −294 MPa (Chuang et al . ).…”

Section: D Meshing and Materialsmentioning

confidence: 97%

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Mechanical weakening of devitalized teeth: three‐dimensional Finite Element Analysis and prediction of tooth fracture

et al. 2014

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The combined finite element method and the maximum principal stress analysis gave insight into the fracture mechanisms of teeth with two-surface composite restorations followed by root canal preparation. Removal of tooth tissue, despite its subsequent restoration with dental materials, weakened the tooth by changing the stress intensity and distribution through tooth structures. Access cavity preparation had the greatest influence on tooth strength whilst canal enlargement did not contribute to this process substantially.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 97%

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Mechanical weakening of devitalized teeth: three‐dimensional Finite Element Analysis and prediction of tooth fracture

et al. 2014

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“…[20][21][22] Recently, a series of investigations has been carried out using DIC to measure strains over bone surfaces. [14][15][16][23][24][25] Despite its strong potential, the use of DIC has largely been restricted to FE validation purposes in experimental biomechanics. Moreover, only a few such investigations were carried out on the femur, either using composite 14,19,26,27 or cadaver specimens.…”

Section: Full-field In Vitro Measurements and In Silico Predictions Omentioning

confidence: 99%

Full-fieldin vitromeasurements andin silicopredictions of strain shielding in the implanted femur after total hip arthroplasty

Chanda

Dickinson

Gupta

et al. 2015

Proc Inst Mech Eng H

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Alterations in bone strain as a result of implantation may contribute towards periprosthetic bone density changes after Total Hip Arthroplasty (THA). Computational models provide full-field strain predictions in implant-bone constructs; however, these predictions should be verified using experimental models wherever possible. In the present work, finite element (FE) predictions of surface strains in intact and implanted composite femurs were verified using digital image correlation (DIC). Relationships were sought between post implantation strain states across seven defined Gruen zones (GZ) and clinically observed longer term bone density changes. Computational predictions of strain distributions in intact and implanted femurs were compared to DIC measurements in two regions of interest. Regression analyses indicated strong linear correlation between measurements and predictions (R = 0.927 intact, 0.926 implanted) with low standard error (SE = 38µε intact, 26µε implanted). Pre-to postoperative changes in measured and predicted surface strains were found to relate qualitatively to clinicallyobserved volumetric bone density changes across seven Gruen zones: marked proximal bone density loss corresponded with a 50-64% drop in surface strain, and slight distal density changes corresponded with 4-14% strain increase. These results support the use of DIC as a pre-clinical tool for predicting post implantation strain shielding, indicative of long-term bone adaptations.

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“…There is substantial clinical evidence that the strategy of cavity preparation, along with the selection and placement of restorative materials are vital to the short and long term success of treatment (Banerjee et al, 2000;Chuang et al, 2011;Mjor and Gordan, 2002). Generally speaking, the traditional restoration is preferred as it is a more mature procedure.…”

Section: Introductionmentioning

confidence: 99%

Mechanical benefits of conservative restoration for dental fissure caries

Zhang

Zheng

et al. 2016

Journal of the Mechanical Behavior of Biomedical Materials

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Contraction behaviors of dental composite restorations — Finite element investigation with DIC validation

Cited by 34 publications

References 45 publications

Mechanical weakening of devitalized teeth: three‐dimensional Finite Element Analysis and prediction of tooth fracture

Mechanical weakening of devitalized teeth: three‐dimensional Finite Element Analysis and prediction of tooth fracture

Full-fieldin vitromeasurements andin silicopredictions of strain shielding in the implanted femur after total hip arthroplasty

Mechanical benefits of conservative restoration for dental fissure caries

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