Effect of Restorative Material on Mechanical Response of Provisional Endocrowns: A 3D—FEA Study
The goal of this study was to evaluate the stress distribution in an endocrown restoration according to different provisional restorative materials. An endodontically treated maxillary molar model was selected for conducting the finite element analysis (FEA), with a determined amount of dental remna...
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MDPI AG
2021-01-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/3/649 |
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| author | João Paulo Mendes Tribst Alexandre Luiz Souto Borges Laís Regiane Silva-Concílio Marco Antonio Bottino Mutlu Özcan |
| author_facet | João Paulo Mendes Tribst Alexandre Luiz Souto Borges Laís Regiane Silva-Concílio Marco Antonio Bottino Mutlu Özcan |
| author_sort | João Paulo Mendes Tribst |
| collection | DOAJ |
| description | The goal of this study was to evaluate the stress distribution in an endocrown restoration according to different provisional restorative materials. An endodontically treated maxillary molar model was selected for conducting the finite element analysis (FEA), with a determined amount of dental remnant of 1.5 mm. The model was imported to the analysis software (ANSYS 19.2, ANSYS Inc., Houston, TX, USA) in STEP format. All contacts were considered perfectly bonded. The mechanical properties of each structure were considered isotropic, linear, elastic, and homogeneous. Three different provisional restorative materials were simulated (acrylic resin, bis-acrylic resin, and resin composite). An axial load (300 N) was applied at the occlusal surface in the center of the restoration. Results were determined by colorimetric stress maps of maximum principal stress, maximum shear stress, and total deformation. The different materials influenced the stress distribution for all structures; the higher the material’s elastic modulus, the lower the stress magnitude on the cement layer. In the present study, all provisional restorative materials showed similar stress patterns in the endocrown and on the cement layer however, with different magnitude. Based on this study limitation, the use of resin composite to manufacture provisional endocrowns is suggested as a promising material to reduce the stresses in the cement layer and in the dental tissue surfaces. |
| first_indexed | 2024-03-09T06:21:03Z |
| format | Article |
| id | doaj.art-b49f95926c7b4693a0028cab88f01199 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T06:21:03Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-b49f95926c7b4693a0028cab88f011992023-12-03T11:48:40ZengMDPI AGMaterials1996-19442021-01-0114364910.3390/ma14030649Effect of Restorative Material on Mechanical Response of Provisional Endocrowns: A 3D—FEA StudyJoão Paulo Mendes Tribst0Alexandre Luiz Souto Borges1Laís Regiane Silva-Concílio2Marco Antonio Bottino3Mutlu Özcan4School of Dentistry, University of Taubaté, Taubaté, São Paulo 12020-340, BrazilInstitute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, São Paulo 12220-690, BrazilSchool of Dentistry, University of Taubaté, Taubaté, São Paulo 12020-340, BrazilInstitute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, São Paulo 12220-690, BrazilDivision of Dental Biomaterials, Center for Dental and Oral Medicine, Clinic for Reconstructive Dentistry, University of Zurich, 8032 Zurich, SwitzerlandThe goal of this study was to evaluate the stress distribution in an endocrown restoration according to different provisional restorative materials. An endodontically treated maxillary molar model was selected for conducting the finite element analysis (FEA), with a determined amount of dental remnant of 1.5 mm. The model was imported to the analysis software (ANSYS 19.2, ANSYS Inc., Houston, TX, USA) in STEP format. All contacts were considered perfectly bonded. The mechanical properties of each structure were considered isotropic, linear, elastic, and homogeneous. Three different provisional restorative materials were simulated (acrylic resin, bis-acrylic resin, and resin composite). An axial load (300 N) was applied at the occlusal surface in the center of the restoration. Results were determined by colorimetric stress maps of maximum principal stress, maximum shear stress, and total deformation. The different materials influenced the stress distribution for all structures; the higher the material’s elastic modulus, the lower the stress magnitude on the cement layer. In the present study, all provisional restorative materials showed similar stress patterns in the endocrown and on the cement layer however, with different magnitude. Based on this study limitation, the use of resin composite to manufacture provisional endocrowns is suggested as a promising material to reduce the stresses in the cement layer and in the dental tissue surfaces.https://www.mdpi.com/1996-1944/14/3/649dental restoration failureendodontically treated teethfinite element analysisdental materials |
| spellingShingle | João Paulo Mendes Tribst Alexandre Luiz Souto Borges Laís Regiane Silva-Concílio Marco Antonio Bottino Mutlu Özcan Effect of Restorative Material on Mechanical Response of Provisional Endocrowns: A 3D—FEA Study Materials dental restoration failure endodontically treated teeth finite element analysis dental materials |
| title | Effect of Restorative Material on Mechanical Response of Provisional Endocrowns: A 3D—FEA Study |
| title_full | Effect of Restorative Material on Mechanical Response of Provisional Endocrowns: A 3D—FEA Study |
| title_fullStr | Effect of Restorative Material on Mechanical Response of Provisional Endocrowns: A 3D—FEA Study |
| title_full_unstemmed | Effect of Restorative Material on Mechanical Response of Provisional Endocrowns: A 3D—FEA Study |
| title_short | Effect of Restorative Material on Mechanical Response of Provisional Endocrowns: A 3D—FEA Study |
| title_sort | effect of restorative material on mechanical response of provisional endocrowns a 3d fea study |
| topic | dental restoration failure endodontically treated teeth finite element analysis dental materials |
| url | https://www.mdpi.com/1996-1944/14/3/649 |
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