Biomechanical performance of resin composite on dental tissue restoration: A finite element analysis

Abdelhak Ouldyerou, Hassan Mehboob, Ali Mehboob, Ali Merdji, Laïd Aminallah, Osama M. Mukdadi, Imad Barsoum, Harri Junaedi

    Research output: Contribution to journalArticlepeer-review


    This study investigates the biomechanical performance of various dental materials when filled in different cavity designs and their effects on surrounding dental tissues. Finite element models of three infected teeth with different cavity designs, Class I (occlusal), Class II mesial-occlusal (MO), and Class II mesio-occluso-distal (MOD) were constructed. These cavities were filled with amalgam, composites (Young’s moduli of 10, 14, 18, 22, and 26 GPa), and glass carbomer cement (GCC). An occlusal load of 600 N was distributed on the top surface of the teeth to carry out simulations. The findings revealed that von Mises stress was higher in GCC material, with cavity Class I (46.01 MPa in the enamel, 23.61 MPa in the dentin), and for cavity Class II MO von Mises stress was 43.64 MPa, 39.18 MPa in enamel and dentin respectively, while in case of cavity Class II MOD von Mises stress was 44.67 MPa in enamel, 27.5 in the dentin. The results showed that higher stresses were generated in the non-restored tooth compared to the restored one, and increasing Young’s modulus of restorative composite material decreases stresses in enamel and dentin. The use of composite material showed excellent performance which can be a good viable option for restorative material compared to other restorative materials. Copyright: © 2023 Ouldyerou et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
    Original languageAmerican English
    JournalPLoS ONE
    Volume12 December
    Issue numbere0295582
    StatePublished - 2023


    • amalgam
    • resin
    • glass carbomer cement
    • glass ionomer
    • Article
    • biomechanics
    • controlled study
    • cortical bone
    • dental restoration
    • dentin
    • enamel
    • finite element analysis
    • geometry
    • human
    • physiological stress
    • prediction
    • simulation
    • tensile strength
    • validation process
    • Young modulus
    • dental procedure
    • mechanical stress
    • Composite Resins
    • Dental Restoration, Permanent
    • Dental Stress Analysis
    • Elastic Modulus
    • Finite Element Analysis
    • Glass Ionomer Cements
    • Stress, Mechanical


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