Finite element analysis of FGM dental crowns using phase-field approach

Functionally graded materials (FGMs) – categorized in advanced composite materials – are specially designed to reduce the stresses and failure due to material mismatches. Advances in manufacturing techniques have brought FGMs into use in a variety of applications. However, the numerical analysis is...

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Bibliographic Details
Published in:Journal of the mechanical behavior of biomedical materials 2023-02, Vol.138, p.105629-105629, Article 105629
Main Authors: Sait, Ferit, Saeidi, Nazanin, Korkmaz, Turan
Format: Article
Language:English
Subjects:
Crowns
Dental crown
Dental Porcelain
Dental Stress Analysis
Finite Element Analysis
Functionally graded material
Homogenization
Mandible
Metals
PFM
Phase-field
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Summary:Functionally graded materials (FGMs) – categorized in advanced composite materials – are specially designed to reduce the stresses and failure due to material mismatches. Advances in manufacturing techniques have brought FGMs into use in a variety of applications. However, the numerical analysis is still challenging due to the difficulties in simulations of non-homogeneous material domains of complex parts. Presenting a numerical procedure that both facilitates the implementation of material non-homogeneity in geometrically complex mediums, and increases the accuracy of the calculations using a phase-field approach, this study investigates the usage of FGMs in dental prostheses. For this purpose, a porcelain fused to metal (PFM) mandibular first molar FGM crown is simulated and analyzed under the maximum masticatory bite force, and eventually the results are compared to a PFM crown prepared conventionally. •Implementation of the phase-field model is suitable for any complex-shape FGM structure.•The phase-field approach provides a more realistic transition zone.•The FGM method smoothens the stresses in the domain.•FGM crowns are more resistant to failure and chipping in comparison with conventional crowns.
ISSN:1751-6161
1878-0180
DOI:10.1016/j.jmbbm.2022.105629