Atenção: Todas as denúncias são sigilosas e sua identidade será preservada.
Os campos nome e e-mail são de preenchimento opcional
Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | University of Taubaté | - |
Autor(es): dc.contributor | University Hospital “G. Martino” of Messina | - |
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | University of Messina | - |
Autor(es): dc.creator | Tribst, João Paulo Mendes | - |
Autor(es): dc.creator | Giudice, Roberto Lo | - |
Autor(es): dc.creator | Dos Santos, Alison Flavio Campos | - |
Autor(es): dc.creator | Borges, Alexandre Luiz Souto [UNESP] | - |
Autor(es): dc.creator | Silva-Concílio, Laís Regiane | - |
Autor(es): dc.creator | Amaral, Marina | - |
Autor(es): dc.creator | Giudice, Giuseppe Lo | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:53:38Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:53:38Z | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-03-01 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.3390/ma14051307 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/208519 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/208519 | - |
Descrição: dc.description | The purpose of this study is to evaluate the effect of pulp chamber extension angles and filling material mechanical properties on the biomechanical response of a ceramic endocrown. A 3D model of maxillary molar that underwent endodontically treatment was exported to computer aided design software to conduct finite element analysis (FEA). The endocrown model was modified considering different pulp chamber extension angles (right angle; 6°, 12° and 18° of axial divergence). The solids were imported into the computer aided engineering software in Standard for the Exchange of Product Data (STEP) format. Nine different filling materials were simulated to seal the orifice of the root canal system under each endocrown restoration (resin composite, bulk-fill resin composite, alkasite, flowable resin composite, glass ionomer cement, autocured resin-reinforced glass ionomer cement, resin cement, bulk-fill flowable resin composite, zinc oxide cement), totaling 36 models. An axial load (300 N) was applied at the occlusal surface. Results were determined by colorimetric graphs of von-Misses stress (VMS) and Maximum Principal Stress (MPS) on tooth, cement layer, and endocrown restorations. VMS distribution showed a similar pattern between the models, with more stress at the load region for the right-angled endocrowns. The MPS showed that the endocrown intaglio surface and cement layer showed different mechanical responses with different filing materials and pulp chamber angles. The stress peaks plotted in the dispersion plot showed that the filling material stiffness is proportional to the stress magnitude in the endocrown, cement layer and tooth adhesive surface. In addition, the higher the pulp chamber preparation angle, the higher the stress peak in the restoration and tooth, and the lower the stress in the cement layer. Therefore, 6° and 12° pulp chamber angles showed more promising balance between the stresses of the adhesive interface structures. Under the conditions of this study, rigid filling materials were avoided to seal the orifice of root canal system when an endocrown restoration was planned as rehabilitation. In addition, the pulp chamber axial walls were prepared between 6° and 12° of divergence to balance the stress magnitude in the adhesive interface for this treatment modality. | - |
Descrição: dc.description | School of Dentistry University of Taubaté | - |
Descrição: dc.description | Department of Human Pathology in Adulthood and Childhood “G. Barresi” University Hospital “G. Martino” of Messina, Via Consolare Valeria 1 | - |
Descrição: dc.description | Institute of Science and Technology São Paulo State University (Unesp) São José dos Campos | - |
Descrição: dc.description | Department of Biomedical and Dental Sciences and Morphofunctional Imaging University of Messina | - |
Descrição: dc.description | Institute of Science and Technology São Paulo State University (Unesp) São José dos Campos | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Materials | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | Dental materials | - |
Palavras-chave: dc.subject | Dental restoration failure | - |
Palavras-chave: dc.subject | Endodontically treated teeth | - |
Palavras-chave: dc.subject | Finite element analysis | - |
Título: dc.title | Lithium disilicate ceramic endocrown biomechanical response according to different pulp chamber extension angles and filling materials | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
O Portal eduCAPES é oferecido ao usuário, condicionado à aceitação dos termos, condições e avisos contidos aqui e sem modificações. A CAPES poderá modificar o conteúdo ou formato deste site ou acabar com a sua operação ou suas ferramentas a seu critério único e sem aviso prévio. Ao acessar este portal, você, usuário pessoa física ou jurídica, se declara compreender e aceitar as condições aqui estabelecidas, da seguinte forma: