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 | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | University of Taubaté (UNITAU) | - |
Autor(es): dc.contributor | Private Practice | - |
Autor(es): dc.creator | de Andrade, Guilherme Schmitt [UNESP] | - |
Autor(es): dc.creator | Pinto, Alana Barbosa Alves [UNESP] | - |
Autor(es): dc.creator | Tribst, João Paulo Mendes | - |
Autor(es): dc.creator | Chun, Eliseo Pablo | - |
Autor(es): dc.creator | Borges, Alexandre Luiz Souto [UNESP] | - |
Autor(es): dc.creator | de Siqueira Ferreira Anzaloni Saavedra, Guilherme [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:53:04Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:53:04Z | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2019-12-31 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1080/10255842.2020.1866561 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/208312 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/208312 | - |
Descrição: dc.description | This study evaluated the polymerization shrinkage stress of three tooth preparation designs for indirect ceramic overlay by finite element analysis: isthmus preparation (IST); without isthmus preparation (wIST); and non-retentive preparation (nRET). The models were created based in prepared dental typodonts and were digitally impressed with an intraoral scanner. The interfaces in all models were considered perfectly bonded and all materials were considered homogeneous, linear, and isotropic. The polymerization shrinkage of the cement layer (100 µm) was simulated and evaluated by maximum principal stress criteria. The stress peaks followed this sequence: restoration = IST (13.4 MPa) > wIST (9.3 MPa) > nRET (9 MPa); cement layer = IST (16.9 MPa) > wIST (12.6 MPa) > nRET (10-7.5 MPa); and teeth = IST (10.7 MPa) > wIST (10.5 MPa) > (9 MPa). For the cement layer, the non-retentive preparation (nRET) had the lowest shrinkage stress from all the groups, obtaining a more homogeneous stress distribution on the cement surface. Regarding the abutment teeth, the IST generated a higher shrinkage stress area on the dental structure, concentrating higher stress magnitude at the axiopulpar and axiogingival angles. Non-retentive preparation seems to reduce polymerization shrinkage stress. | - |
Descrição: dc.description | Department of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP) | - |
Descrição: dc.description | Departament of Dentistry Postgraduate Program in Dentistry University of Taubaté (UNITAU) | - |
Descrição: dc.description | Private Practice | - |
Descrição: dc.description | Department of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP) | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Computer Methods in Biomechanics and Biomedical Engineering | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | Dental onlays | - |
Palavras-chave: dc.subject | dental prosthesis | - |
Palavras-chave: dc.subject | dental restoration failure | - |
Palavras-chave: dc.subject | finite element analysis | - |
Palavras-chave: dc.subject | tooth preparation | - |
Título: dc.title | Does overlay preparation design affect polymerization shrinkage stress distribution? A 3D FEA study | - |
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: