Stress distribution on dentin-cement-post interface varying root canal and glass fiber post diameters. A three-dimensional finite element analysis based on micro-C data

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorLazari, Priscilla Cardoso
dc.creatorNunes de Oliveira, Rodrigo Caldeira
dc.creatorAnchieta, Rodolfo Bruniera
dc.creatorAlmeida, Erika Oliveira de
dc.creatorFreitas Junior, Amilcar Chagas
dc.creatorKina, Sidney
dc.creatorRocha, Eduardo Passos
dc.date2014-12-03T13:10:42Z
dc.date2016-10-25T20:11:11Z
dc.date2014-12-03T13:10:42Z
dc.date2016-10-25T20:11:11Z
dc.date2013-11-01
dc.date.accessioned2017-04-06T06:22:28Z
dc.date.available2017-04-06T06:22:28Z
dc.identifierJournal Of Applied Oral Science. Bauru-sp: Univ Sao Paulo Fac Odontologia Bauru, v. 21, n. 6, p. 511-517, 2013.
dc.identifier1678-7757
dc.identifierhttp://hdl.handle.net/11449/112437
dc.identifierhttp://acervodigital.unesp.br/handle/11449/112437
dc.identifier10.1590/1679-775720130203
dc.identifierS1678-77572013000600511
dc.identifierWOS:000330901600004
dc.identifierS1678-77572013000600511.pdf
dc.identifierhttp://dx.doi.org/10.1590/1679-775720130203
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572013000600511
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/923199
dc.descriptionObjective: The aim of the present study was to analyze the influence of root canal and glass fiber post diameters on the biomechanical behavior of the dentin/cement/post interface of a root-filled tooth using 3D finite element analysis. Material and Methods: Six models were built using micro-CT imaging data and SolidWorks 2007 software, varying the root canal (C) and the glass fiber post (P) diameters: C1P1-C=1 mm and P=1 mm; C2P1-C=2 mm and P=1 mm; C2P2-C=2 mm and P=2 mm; C3P1-C=3 mm and P=1 mm; C3P2-C=3 mm and P=2 mm; and C3P3-C=3 mm and P=3 mm. The numerical analysis was conducted with ANSYS Workbench 10.0. An oblique force (180 N at 45) was applied to the palatal surface of the central incisor. The periodontal ligament surface was constrained on the three axes (x=y=z=0). Maximum principal stress (sigma(max)) values were evaluated for the root dentin, cement layer, and glass fiber post. Results: The most evident stress was observed in the glass fiber post at C3P1 (323 MPa), and the maximum stress in the cement layer occurred at C1P1 (43.2 MPa). The stress on the root dentin was almost constant in all models with a peak in tension at C2P1 (64.5 MPa). Conclusion: The greatest discrepancy between root canal and post diameters is favorable for stress concentration at the post surface. The dentin remaining after the various root canal preparations did not increase the stress levels on the root.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageeng
dc.publisherUniversidade de São Paulo (USP), Faculdade de Odontologia de Bauru
dc.relationJournal of Applied Oral Science
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectDental pins
dc.subjectDental cements
dc.subjectFinite element analysis
dc.subjectTooth root
dc.subjectPost and core technique
dc.titleStress distribution on dentin-cement-post interface varying root canal and glass fiber post diameters. A three-dimensional finite element analysis based on micro-C data
dc.typeOtro


Este ítem pertenece a la siguiente institución