Stress concentration of endodontically treated molars restored with transfixed glass fiber post: 3d-finite element analysis
The loss of dental structure caused by endodontic treatment is responsible for a decrease in tooth resistance, which increases susceptibility to fracture. Therefore, it is important that minimally invasive treatments be performed to preserve the dental structure and increase the resistance to fractu...
| Autores: | ; ; ; ; ; ; |
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| Tipo de documento: | Artículo |
| Estado: | Published version |
| Fecha de publicación: | 2021 |
| País: | Brasil |
| Institución: | UNESP |
| Repositorio: | Repositório Institucional da UNESP |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/229295 |
| Acceso en línea: | http://dx.doi.org/10.3390/ma14154249 http://hdl.handle.net/11449/229295 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | Dental materials Dental restoration failure Endodontically treated teeth Finite element analysis |
| _version_ | 1878765382682017792 |
|---|---|
| author | Souto Borges, Alexandre Luiz [UNESP] |
| author2 | Vieira Grangeiro, Manassés Tercio [UNESP] De Andrade, Guilherme Schmitt [UNESP] De Melo, Renata Marques [UNESP] Baroudi, Kusai Silva-Concilio, Laís Regiane Mendes Tribst, João Paulo |
| author2_role | author author author author author author |
| author_browse | Baroudi, Kusai De Andrade, Guilherme Schmitt [UNESP] De Melo, Renata Marques [UNESP] Mendes Tribst, João Paulo Silva-Concilio, Laís Regiane Souto Borges, Alexandre Luiz [UNESP] Vieira Grangeiro, Manassés Tercio [UNESP] |
| author_facet | Souto Borges, Alexandre Luiz [UNESP] Vieira Grangeiro, Manassés Tercio [UNESP] De Andrade, Guilherme Schmitt [UNESP] De Melo, Renata Marques [UNESP] Baroudi, Kusai Silva-Concilio, Laís Regiane Mendes Tribst, João Paulo |
| author_role | author |
| collection | Repositório Institucional da UNESP |
| description | The loss of dental structure caused by endodontic treatment is responsible for a decrease in tooth resistance, which increases susceptibility to fracture. Therefore, it is important that minimally invasive treatments be performed to preserve the dental structure and increase the resistance to fracture of endodontically treated posterior teeth. To evaluate under axial loads, using the finite element method, the stress distribution in endodontically treated molars restored with both transfixed or vertical glass fiber posts (GFP) and resin composite. An endodontically treated molar 3D-model was analyzed using finite element analyses under four different conditions, class II resin composite (G1, control model), vertical glass fiber post (G2), transfixed glass fiber posts (G3) and vertical and transfixed glass fiber posts (G4). Ideal contacts were considered between restoration/resin composite and resin composite/tooth. An axial load (300 N) was applied to the occlusal surface. The resulting tensile stresses were calculated for the enamel and dentin tissue from five different viewports (occlusal, buccal, palatal, mesial and distal views). According to the stress maps, similar stress trends were observed, regardless of the glass fiber post treatment. In addition, for the G1 model (without GFP), a high-stress magnitude can be noticed in the proximal faces of enamel (7.7 to 14 MPa) and dentin (2.1 to 3.3 MPa) tissue. The use of transfixed glass fiber post is not indicated to reduce the stresses, under axial loads, in both enamel and dentin tissue in endodontically treated molar with a class II cavity. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | BR_d7c2f2ca7c40ca22ef1d9dc39daa389a |
| institution | UNESP |
| instname_str | Universidade Estadual Paulista (UNESP) |
| language | eng |
| network_acronym_str | BR |
| network_name_str | Brasil |
| oai_identifier_str | oai:repositorio.unesp.br:11449/229295 |
| publishDate | 2021 |
| publishDateSort | 2021 |
| reponame_str | Repositório Institucional da UNESP |
| spelling | Stress concentration of endodontically treated molars restored with transfixed glass fiber post: 3d-finite element analysis Souto Borges, Alexandre Luiz [UNESP] Vieira Grangeiro, Manassés Tercio [UNESP] De Andrade, Guilherme Schmitt [UNESP] De Melo, Renata Marques [UNESP] Baroudi, Kusai Silva-Concilio, Laís Regiane Mendes Tribst, João Paulo Dental materials Dental restoration failure Endodontically treated teeth Finite element analysis The loss of dental structure caused by endodontic treatment is responsible for a decrease in tooth resistance, which increases susceptibility to fracture. Therefore, it is important that minimally invasive treatments be performed to preserve the dental structure and increase the resistance to fracture of endodontically treated posterior teeth. To evaluate under axial loads, using the finite element method, the stress distribution in endodontically treated molars restored with both transfixed or vertical glass fiber posts (GFP) and resin composite. An endodontically treated molar 3D-model was analyzed using finite element analyses under four different conditions, class II resin composite (G1, control model), vertical glass fiber post (G2), transfixed glass fiber posts (G3) and vertical and transfixed glass fiber posts (G4). Ideal contacts were considered between restoration/resin composite and resin composite/tooth. An axial load (300 N) was applied to the occlusal surface. The resulting tensile stresses were calculated for the enamel and dentin tissue from five different viewports (occlusal, buccal, palatal, mesial and distal views). According to the stress maps, similar stress trends were observed, regardless of the glass fiber post treatment. In addition, for the G1 model (without GFP), a high-stress magnitude can be noticed in the proximal faces of enamel (7.7 to 14 MPa) and dentin (2.1 to 3.3 MPa) tissue. The use of transfixed glass fiber post is not indicated to reduce the stresses, under axial loads, in both enamel and dentin tissue in endodontically treated molar with a class II cavity. Department of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (Unesp), São José dos Campos Graduate Program in Dentistry Department of Dentistry University of Taubaté (UNITAU) http://dx.doi.org/10.3390/ma14154249 Materials, v. 14, n. 15, 2021. 1996-1944 http://hdl.handle.net/11449/229295 10.3390/ma14154249 2-s2.0-85112132663 |
| spellingShingle | Stress concentration of endodontically treated molars restored with transfixed glass fiber post: 3d-finite element analysis Souto Borges, Alexandre Luiz [UNESP] Dental materials Dental restoration failure Endodontically treated teeth Finite element analysis |
| status_str | publishedVersion |
| title | Stress concentration of endodontically treated molars restored with transfixed glass fiber post: 3d-finite element analysis |
| title_full | Stress concentration of endodontically treated molars restored with transfixed glass fiber post: 3d-finite element analysis |
| title_fullStr | Stress concentration of endodontically treated molars restored with transfixed glass fiber post: 3d-finite element analysis |
| title_full_unstemmed | Stress concentration of endodontically treated molars restored with transfixed glass fiber post: 3d-finite element analysis |
| title_short | Stress concentration of endodontically treated molars restored with transfixed glass fiber post: 3d-finite element analysis |
| title_sort | Stress concentration of endodontically treated molars restored with transfixed glass fiber post: 3d-finite element analysis |
| topic | Dental materials Dental restoration failure Endodontically treated teeth Finite element analysis |
| topic_facet | Dental materials Dental restoration failure Endodontically treated teeth Finite element analysis |
| url | http://dx.doi.org/10.3390/ma14154249 http://hdl.handle.net/11449/229295 |