Influence of Polymeric Restorative Materials on the Stress Distribution in Posterior Fixed Partial Dentures: 3D Finite Element Analysis
Background: This study evaluated the effect of interim restorative materials (acrylic resin (AR), resin composite (RC) or polyetheretherketone (PEEK) for dental computer-aided design/computer-aided manufacturing (CAD/CAM)) on the stress distribution of a posterior three-unit fixed partial denture. M...
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| Format: | Article |
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MDPI AG
2021-02-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/5/758 |
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| author | Larissa Mendes Campaner Marcos Paulo Motta Silveira Guilherme Schmitt de Andrade Alexandre Luiz Souto Borges Marco Antonio Bottino Amanda Maria de Oliveira Dal Piva Roberto Lo Giudice Pietro Ausiello João Paulo Mendes Tribst |
| author_facet | Larissa Mendes Campaner Marcos Paulo Motta Silveira Guilherme Schmitt de Andrade Alexandre Luiz Souto Borges Marco Antonio Bottino Amanda Maria de Oliveira Dal Piva Roberto Lo Giudice Pietro Ausiello João Paulo Mendes Tribst |
| author_sort | Larissa Mendes Campaner |
| collection | DOAJ |
| description | Background: This study evaluated the effect of interim restorative materials (acrylic resin (AR), resin composite (RC) or polyetheretherketone (PEEK) for dental computer-aided design/computer-aided manufacturing (CAD/CAM)) on the stress distribution of a posterior three-unit fixed partial denture. Methods: The abutment teeth (first molar and first premolar) were modeled using the BioCAD protocol containing 1.5 mm of axial reduction and converging axial walls. A static structural analysis was performed in the computer-aided engineering software, and the Maximum Principal Stress criterion was used to analyze the prosthesis and the cement layers of both abutment teeth. The materials were considered isotropic, linearly elastic, homogeneous and with bonded contacts. An axial load (600 N) was applied to the occlusal surface of the second premolar. Results: Regardless of the restorative material, the region of the prosthetic connectors showed the highest tensile stress magnitude. The highest stress peak was observed with the use of RC (129 MPa) compared to PEEK and AR. For the cement layers, RC showed the lowest values in the occlusal region (7 MPa) and the highest values for the cervical margin (14 MPa) compared to PEEK (21 and 12 MPa) and AR (21 and 13 MPa). Conclusions: Different interim restorative materials for posterior fixed partial dentures present different biomechanical behavior. The use of resin composite can attenuate the stress magnitude on the cement layer, and the use of acrylic resin can attenuate the stress magnitude on the connector region. |
| first_indexed | 2024-03-09T06:10:57Z |
| format | Article |
| id | doaj.art-e0b4d3949ea24e14bf2b9dedb9e3e775 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T06:10:57Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-e0b4d3949ea24e14bf2b9dedb9e3e7752023-12-03T11:58:37ZengMDPI AGPolymers2073-43602021-02-0113575810.3390/polym13050758Influence of Polymeric Restorative Materials on the Stress Distribution in Posterior Fixed Partial Dentures: 3D Finite Element AnalysisLarissa Mendes Campaner0Marcos Paulo Motta Silveira1Guilherme Schmitt de Andrade2Alexandre Luiz Souto Borges3Marco Antonio Bottino4Amanda Maria de Oliveira Dal Piva5Roberto Lo Giudice6Pietro Ausiello7João Paulo Mendes Tribst8Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, São Paulo 12220690, BrazilInstitute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, São Paulo 12220690, BrazilInstitute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, São Paulo 12220690, BrazilInstitute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, São Paulo 12220690, BrazilInstitute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, São Paulo 12220690, BrazilInstitute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, São Paulo 12220690, BrazilDepartment of Clinical and Experimental Medicine, Messina University, AOU Policlinico “G.Martino”, Via Consolare Valeria, 98100 Messina, ItalySchool of Dentistry, University of Naples Federico II, 80131 Naples, ItalyInstitute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, São Paulo 12220690, BrazilBackground: This study evaluated the effect of interim restorative materials (acrylic resin (AR), resin composite (RC) or polyetheretherketone (PEEK) for dental computer-aided design/computer-aided manufacturing (CAD/CAM)) on the stress distribution of a posterior three-unit fixed partial denture. Methods: The abutment teeth (first molar and first premolar) were modeled using the BioCAD protocol containing 1.5 mm of axial reduction and converging axial walls. A static structural analysis was performed in the computer-aided engineering software, and the Maximum Principal Stress criterion was used to analyze the prosthesis and the cement layers of both abutment teeth. The materials were considered isotropic, linearly elastic, homogeneous and with bonded contacts. An axial load (600 N) was applied to the occlusal surface of the second premolar. Results: Regardless of the restorative material, the region of the prosthetic connectors showed the highest tensile stress magnitude. The highest stress peak was observed with the use of RC (129 MPa) compared to PEEK and AR. For the cement layers, RC showed the lowest values in the occlusal region (7 MPa) and the highest values for the cervical margin (14 MPa) compared to PEEK (21 and 12 MPa) and AR (21 and 13 MPa). Conclusions: Different interim restorative materials for posterior fixed partial dentures present different biomechanical behavior. The use of resin composite can attenuate the stress magnitude on the cement layer, and the use of acrylic resin can attenuate the stress magnitude on the connector region.https://www.mdpi.com/2073-4360/13/5/758dental materialsfinite element analysisprosthodonticsbiomechanics |
| spellingShingle | Larissa Mendes Campaner Marcos Paulo Motta Silveira Guilherme Schmitt de Andrade Alexandre Luiz Souto Borges Marco Antonio Bottino Amanda Maria de Oliveira Dal Piva Roberto Lo Giudice Pietro Ausiello João Paulo Mendes Tribst Influence of Polymeric Restorative Materials on the Stress Distribution in Posterior Fixed Partial Dentures: 3D Finite Element Analysis Polymers dental materials finite element analysis prosthodontics biomechanics |
| title | Influence of Polymeric Restorative Materials on the Stress Distribution in Posterior Fixed Partial Dentures: 3D Finite Element Analysis |
| title_full | Influence of Polymeric Restorative Materials on the Stress Distribution in Posterior Fixed Partial Dentures: 3D Finite Element Analysis |
| title_fullStr | Influence of Polymeric Restorative Materials on the Stress Distribution in Posterior Fixed Partial Dentures: 3D Finite Element Analysis |
| title_full_unstemmed | Influence of Polymeric Restorative Materials on the Stress Distribution in Posterior Fixed Partial Dentures: 3D Finite Element Analysis |
| title_short | Influence of Polymeric Restorative Materials on the Stress Distribution in Posterior Fixed Partial Dentures: 3D Finite Element Analysis |
| title_sort | influence of polymeric restorative materials on the stress distribution in posterior fixed partial dentures 3d finite element analysis |
| topic | dental materials finite element analysis prosthodontics biomechanics |
| url | https://www.mdpi.com/2073-4360/13/5/758 |
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