Influence of Ferrule, Post System, and Length on Biomechanical Behavior of Endodontically Treated Anterior Teeth

dc.creatorSantos, PCF
dc.creatorVerissimo, C
dc.creatorSoares, PV
dc.creatorSaltarelo, RC
dc.creatorSoares, CJ
dc.creatorMartins, LRM
dc.date2014
dc.dateJAN
dc.date2014-08-01T18:31:08Z
dc.date2015-11-26T17:54:56Z
dc.date2014-08-01T18:31:08Z
dc.date2015-11-26T17:54:56Z
dc.date.accessioned2018-03-29T00:38:40Z
dc.date.available2018-03-29T00:38:40Z
dc.identifierJournal Of Endodontics. Elsevier Science Inc, v. 40, n. 1, n. 119, n. 123, 2014.
dc.identifier0099-2399
dc.identifier1878-3554
dc.identifierWOS:000329413900020
dc.identifier10.1016/j.joen.2013.09.034
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/80117
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/80117
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1290895
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionIntroduction: The aim of this study was to evaluate the influence of post system, length, and ferrule on biomechanical behavior of endodontically treated anterior teeth. Methods: The investigation was conducted by using laboratory tests and 3-dimensional finite element analysis. Eighty bovine incisors were selected and divided into 8 treatment groups (n = 10) with absence of ferrule and 2.0 mm of ferrule, restored with glass fiber post or cast post and core, and 12.0 and 7.0 mm of post length. The specimens were loaded at 1350 angle, and the strain was measured by using strain gauge method. Specimens were subsequently loaded until fracture. Strain and fracture resistance results were analyzed by 3-way analysis of variance and Tukey honestly significant difference tests (alpha = 0.05). Three-dimensional models of a maxillary central incisor were generated with the same treatment variations used in laboratory tests. Each model was subjected to 100 N oblique loads. Results were evaluated by von Mises criterion. Results: Ferrule was a determining factor in the strain, fracture resistance, and fracture pattern. In the absence of ferrule, the use of fiberglass posts represents a conservative choice from the standpoint of the fracture patterns observed. The length of 7 mm for cast post and cores produced high rates of root fractures. Finite element analysis showed that glass fiber post showed homogeneous stress distribution, whereas cast post showed stress concentration into root canal. Conclusions: Post length influenced only the cast post strain and stress distribution. The ferrule groups always showed more satisfactory stress distribution and fracture resistance.
dc.description40
dc.description1
dc.description119
dc.description123
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCNPq [0696860139624802]
dc.languageen
dc.publisherElsevier Science Inc
dc.publisherNew York
dc.publisherEUA
dc.relationJournal Of Endodontics
dc.relationJ. Endod.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectEndodontically treated teeth
dc.subjectfracture resistance
dc.subjectglass fiber posts
dc.subjectstrain-gauge
dc.subjectstress distribution
dc.subjectMaxillary Central Incisors
dc.subjectFinite-element-analysis
dc.subjectGlass-fiber Posts
dc.subjectFracture-resistance
dc.subjectStress-distribution
dc.subjectIn-vitro
dc.subjectBovine Teeth
dc.subjectDentin
dc.subjectTooth
dc.subjectRoot
dc.titleInfluence of Ferrule, Post System, and Length on Biomechanical Behavior of Endodontically Treated Anterior Teeth
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución