Effect of Shrinking and No Shrinking Dentine and Enamel Replacing Materials in Posterior Restoration: A 3D-FEA Study
The aim of the present study was to investigate the effect of shrinking and no shrinking dental filling materials combination in posterior restorations under the combined effects of polymerization shrinkage and occlusal load by means of 3D Finite Elements Analysis. Six computer-generated and restore...
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| Format: | Article |
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MDPI AG
2021-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/5/2215 |
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| author | Pietro Ausiello Amanda Maria de Oliveira Dal Piva Alexandre Luiz Souto Borges Antonio Lanzotti Fausto Zamparini Ettore Epifania João Paulo Mendes Tribst |
| author_facet | Pietro Ausiello Amanda Maria de Oliveira Dal Piva Alexandre Luiz Souto Borges Antonio Lanzotti Fausto Zamparini Ettore Epifania João Paulo Mendes Tribst |
| author_sort | Pietro Ausiello |
| collection | DOAJ |
| description | The aim of the present study was to investigate the effect of shrinking and no shrinking dental filling materials combination in posterior restorations under the combined effects of polymerization shrinkage and occlusal load by means of 3D Finite Elements Analysis. Six computer-generated and restored class I or class II cavities models of a lower molar were designed in the CAD software and evaluated according to the cavity and restorative procedure. Different shrinking and no shrinking adhesive materials combination with diverse Young’s modulus were considered. A food bolus was modeled on the occlusal surface replicating the chewing load using static linear analyses Polymerization shrinkage was simulated for the shrinking different restorative materials. The maximum principal stress was selected as analysis criteria. All models exhibited higher stresses along the dentine restoration interfaces with different magnitude and a similar stress trend along enamel restoration interface. Stress values up to 22 MPa and 19 MPa were recorded in the enamel and restoration, respectively. The use of elastic not shrinking material layer in combination with bulk fill composite reduced the stress magnitude in dentine and enamel to replace dental tissues. Class I and class II posterior cavities adhesively restored with shrinking filling material’s combination showed the most unfavorable stress concentrations and the multilayer technique is a promising restorative alternative in posterior adhesive restorations when deep dentin and enamel volumes are missing. |
| first_indexed | 2024-03-09T05:49:05Z |
| format | Article |
| id | doaj.art-5b5051a91a4d4ac5b9996be81e2d857c |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T05:49:05Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-5b5051a91a4d4ac5b9996be81e2d857c2023-12-03T12:18:27ZengMDPI AGApplied Sciences2076-34172021-03-01115221510.3390/app11052215Effect of Shrinking and No Shrinking Dentine and Enamel Replacing Materials in Posterior Restoration: A 3D-FEA StudyPietro Ausiello0Amanda Maria de Oliveira Dal Piva1Alexandre Luiz Souto Borges2Antonio Lanzotti3Fausto Zamparini4Ettore Epifania5João Paulo Mendes Tribst6School of Dentistry, University of Naples Federico II, via S. Pansini 5, 80131 Naples, ItalyDepartment of Dental Materials and Prosthodontics. Institute of Science and Technology, São Paulo State University-UNESP, São José Dos Campos 12220000, BrazilDepartment of Dental Materials and Prosthodontics. Institute of Science and Technology, São Paulo State University-UNESP, São José Dos Campos 12220000, BrazilFraunhofer JL IDEAS, Department of Industrial Engineering, University of Naples Federico II, 80125 Naples, ItalyEndodontic Clinical Section, School of Dentistry, Department of Biomedical and Neuromotor Sciences, University of Bologna-Alma Mater Studiorum, 40125 Bologna, ItalySchool of Dentistry, University of Naples Federico II, via S. Pansini 5, 80131 Naples, ItalySchool of Dentistry, University of Taubaté–UNITAU, Taubaté, São Paulo 12020-340, BrazilThe aim of the present study was to investigate the effect of shrinking and no shrinking dental filling materials combination in posterior restorations under the combined effects of polymerization shrinkage and occlusal load by means of 3D Finite Elements Analysis. Six computer-generated and restored class I or class II cavities models of a lower molar were designed in the CAD software and evaluated according to the cavity and restorative procedure. Different shrinking and no shrinking adhesive materials combination with diverse Young’s modulus were considered. A food bolus was modeled on the occlusal surface replicating the chewing load using static linear analyses Polymerization shrinkage was simulated for the shrinking different restorative materials. The maximum principal stress was selected as analysis criteria. All models exhibited higher stresses along the dentine restoration interfaces with different magnitude and a similar stress trend along enamel restoration interface. Stress values up to 22 MPa and 19 MPa were recorded in the enamel and restoration, respectively. The use of elastic not shrinking material layer in combination with bulk fill composite reduced the stress magnitude in dentine and enamel to replace dental tissues. Class I and class II posterior cavities adhesively restored with shrinking filling material’s combination showed the most unfavorable stress concentrations and the multilayer technique is a promising restorative alternative in posterior adhesive restorations when deep dentin and enamel volumes are missing.https://www.mdpi.com/2076-3417/11/5/2215dental restoration failureshrinkage polymerizationfinite element analysisdental materials |
| spellingShingle | Pietro Ausiello Amanda Maria de Oliveira Dal Piva Alexandre Luiz Souto Borges Antonio Lanzotti Fausto Zamparini Ettore Epifania João Paulo Mendes Tribst Effect of Shrinking and No Shrinking Dentine and Enamel Replacing Materials in Posterior Restoration: A 3D-FEA Study Applied Sciences dental restoration failure shrinkage polymerization finite element analysis dental materials |
| title | Effect of Shrinking and No Shrinking Dentine and Enamel Replacing Materials in Posterior Restoration: A 3D-FEA Study |
| title_full | Effect of Shrinking and No Shrinking Dentine and Enamel Replacing Materials in Posterior Restoration: A 3D-FEA Study |
| title_fullStr | Effect of Shrinking and No Shrinking Dentine and Enamel Replacing Materials in Posterior Restoration: A 3D-FEA Study |
| title_full_unstemmed | Effect of Shrinking and No Shrinking Dentine and Enamel Replacing Materials in Posterior Restoration: A 3D-FEA Study |
| title_short | Effect of Shrinking and No Shrinking Dentine and Enamel Replacing Materials in Posterior Restoration: A 3D-FEA Study |
| title_sort | effect of shrinking and no shrinking dentine and enamel replacing materials in posterior restoration a 3d fea study |
| topic | dental restoration failure shrinkage polymerization finite element analysis dental materials |
| url | https://www.mdpi.com/2076-3417/11/5/2215 |
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