Fracture strength of flared bovine roots restored with different intraradicular posts

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.creatorClavijo, Victor Grover Rene-
Autor(es): dc.creatorReis, José Maurício dos Santos Nunes-
Autor(es): dc.creatorKabbach, William-
Autor(es): dc.creatore Silva, André Luis Faria-
Autor(es): dc.creatorde Oliveira Junior, Osmir Batista-
Autor(es): dc.creatorde Andrade, Marcelo Ferrarezi-
Data de aceite: dc.date.accessioned2025-08-21T17:35:40Z-
Data de disponibilização: dc.date.available2025-08-21T17:35:40Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2009-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/S1678-77572009000600007-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/225702-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/225702-
Descrição: dc.descriptionObjective: The aim of this study was to evaluate the fracture strength and failure mode of flared bovine roots restored with different intraradicular posts. Material and Methods: Fifty bovine incisors with similar dimensions were selected and their roots were flared until 1.0 mm of dentin wall remained. Next, the roots were allocated into five groups (n=10): GI-cast metal post-and-core; GII-fiber posts plus accessory fiber posts; GIII-direct anatomic post; GIV-indirect anatomic post and GV-control (specimens without intraradicular post). A polyether impression material was used to simulate the periodontal ligament. After periodontal ligament simulation, the specimens were subjected to a compressive load at a crosshead speed of 0.5 mm/min in a servo-hydraulic testing machine (MTS 810) applied at 135° to the long axis of the tooth until failure. The data (N) were subjected to ANOVA and Tukey's post-hoc test (α=0.05). Results: GI and GIV presented higher fracture strength (p<0.05) than GII. GIII presented intermediate values without statistically significant differences (p>0.05) from GI, GII and GIV. Control specimens (GV) produced the lowest fracture strength mean values (p<0.05). Despite obtaining the highest mean value, GI presented 100% of unfavorable failures. GII presented 20% of unfavorable failures. GIII, GIV and GV presented only favorable failures. Conclusions: Although further in vitro and in vivo studies are necessary, the results of this study showed that the use of direct and indirect anatomic posts in flared roots could be an alternative to cast metal post-and-core.-
Descrição: dc.descriptionDepartment of Restorative Dentistry Araraquara Dental School São Paulo State University, Araraquara, SP-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Araraquara Dental School São Paulo State University, Araraquara, SP-
Descrição: dc.descriptionDepartment of Restorative Dentistry Piracicaba Dental School State University of Campinas, Piracicaba, SP-
Descrição: dc.descriptionDepartment of Restorative Dentistry Araraquara Dental School São Paulo State University, Araraquara, SP-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Araraquara Dental School São Paulo State University, Araraquara, SP-
Formato: dc.format574-578-
Idioma: dc.languageen-
Relação: dc.relationJournal of Applied Oral Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCompressive strength-
Palavras-chave: dc.subjectPost and core technique-
Palavras-chave: dc.subjectProsthodontics-
Título: dc.titleFracture strength of flared bovine roots restored with different intraradicular posts-
Tipo de arquivo: dc.typelivro digital-
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