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

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          Abstract

          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.

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          Most cited references56

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          Dental caries

          Dental caries is a biofilm-mediated, sugar-driven, multifactorial, dynamic disease that results in the phasic demineralization and remineralization of dental hard tissues. Caries can occur throughout life, both in primary and permanent dentitions, and can damage the tooth crown and, in later life, exposed root surfaces. The balance between pathological and protective factors influences the initiation and progression of caries. This interplay between factors underpins the classification of individuals and groups into caries risk categories, allowing an increasingly tailored approach to care. Dental caries is an unevenly distributed, preventable disease with considerable economic and quality-of-life burdens. The daily use of fluoride toothpaste is seen as the main reason for the overall decline of caries worldwide over recent decades. This Primer aims to provide a global overview of caries, acknowledging the historical era dominated by restoration of tooth decay by surgical means, but focuses on current, progressive and more holistic long-term, patient-centred, tooth-preserving preventive care.
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            Theory of Filler Reinforcement

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              Mesenchymal Stem Cell-Mediated Functional Tooth Regeneration in Swine

              Mesenchymal stem cell-mediated tissue regeneration is a promising approach for regenerative medicine for a wide range of applications. Here we report a new population of stem cells isolated from the root apical papilla of human teeth (SCAP, stem cells from apical papilla). Using a minipig model, we transplanted both human SCAP and periodontal ligament stem cells (PDLSCs) to generate a root/periodontal complex capable of supporting a porcelain crown, resulting in normal tooth function. This work integrates a stem cell-mediated tissue regeneration strategy, engineered materials for structure, and current dental crown technologies. This hybridized tissue engineering approach led to recovery of tooth strength and appearance.
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                Author and article information

                Contributors
                Role: Data curationRole: InvestigationRole: MethodologyRole: Writing – original draft
                Role: ConceptualizationRole: MethodologyRole: Writing – review & editing
                Role: ValidationRole: Writing – review & editing
                Role: SupervisionRole: Visualization
                Role: ConceptualizationRole: Visualization
                Role: SoftwareRole: Visualization
                Role: Formal analysisRole: Investigation
                Role: Writing – review & editing
                Role: Editor
                Journal
                PLoS One
                PLoS One
                plos
                PLOS ONE
                Public Library of Science (San Francisco, CA USA )
                1932-6203
                21 December 2023
                2023
                : 18
                : 12
                : e0295582
                Affiliations
                [1 ] Department of Mechanical Engineering, Faculty of Science and Technology, University of Mascara, Mascara, Algeria
                [2 ] Department of Engineering Management, College of Engineering, Prince Sultan University, Riyadh, Saudi Arabia
                [3 ] Advanced Digital & Additive Manufacturing Center, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
                [4 ] Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia, United States of America
                [5 ] Department of Engineering Mechanics, Royal Institute of Technology – KTH, Teknikringen, Stockholm, Sweden
                Yerevan State Medical University Named after Mkhitar Heratsi, ARMENIA
                Author notes

                Competing Interests: The authors have declared that no competing interests exist.

                Author information
                https://orcid.org/0000-0003-4554-5373
                https://orcid.org/0000-0003-1184-1326
                https://orcid.org/0000-0002-9438-9648
                https://orcid.org/0000-0001-7627-4006
                Article
                PONE-D-23-26356
                10.1371/journal.pone.0295582
                10734934
                38128035
                a730ee30-a21d-4bf4-a8b5-54eacd4f6b44
                © 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.

                History
                : 17 August 2023
                : 23 November 2023
                Page count
                Figures: 8, Tables: 2, Pages: 21
                Funding
                The authors received no specific funding for this work.
                Categories
                Research Article
                Biology and Life Sciences
                Anatomy
                Digestive System
                Teeth
                Medicine and Health Sciences
                Anatomy
                Digestive System
                Teeth
                Biology and Life Sciences
                Anatomy
                Head
                Jaw
                Teeth
                Medicine and Health Sciences
                Anatomy
                Head
                Jaw
                Teeth
                Medicine and Health Sciences
                Medical Conditions
                Infectious Diseases
                Bacterial Diseases
                Caries
                Physical Sciences
                Materials Science
                Materials
                Composite Materials
                Biology and Life Sciences
                Anatomy
                Digestive System
                Teeth
                Dentin
                Medicine and Health Sciences
                Anatomy
                Digestive System
                Teeth
                Dentin
                Biology and Life Sciences
                Anatomy
                Head
                Jaw
                Teeth
                Dentin
                Medicine and Health Sciences
                Anatomy
                Head
                Jaw
                Teeth
                Dentin
                Physical Sciences
                Mathematics
                Applied Mathematics
                Finite Element Analysis
                Biology and Life Sciences
                Biomechanics
                Physical Sciences
                Materials Science
                Material Properties
                Mechanical Properties
                Stiffness
                Physical Sciences
                Materials Science
                Materials
                Amorphous Solids
                Glass
                Custom metadata
                All relevant data are within the manuscript and Supporting information files.

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