The influence of post system design and material on the biomechanical behavior of teeth with little remaining coronal structure

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dc.creatorCristiano Lazzari Pinto
dc.creatorCláudia Lopes Brilhante Bhering
dc.creatorGabriel Rodrigues de Oliveira
dc.creatorAngélica Maroli
dc.creatorVagner Flávio Reginato
dc.creatorRicardo Armini Caldas
dc.creatorAtais Bacchi
dc.date.accessioned2022-09-24T17:42:30Z
dc.date.accessioned2025-09-09T00:22:29Z
dc.date.available2022-09-24T17:42:30Z
dc.date.issued2018-05-14
dc.format.mimetypepdf
dc.identifier.doi10.1111/jopr.12804
dc.identifier.issn1059941X
dc.identifier.urihttps://hdl.handle.net/1843/45448
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry
dc.rightsAcesso Restrito
dc.subjectFinite Element Analysis
dc.subjectTooth fractures
dc.subjectTooth nonvital
dc.subjectPost and core technique
dc.subject.otherFinite element analysis
dc.subject.otherPost-and-core technique
dc.subject.othertooth nonvital
dc.subject.othertooth fracture
dc.titleThe influence of post system design and material on the biomechanical behavior of teeth with little remaining coronal structure
dc.typeArtigo de periódico
local.citation.epage356
local.citation.issue1
local.citation.spage350
local.citation.volume28
local.description.resumoPurpose:To evaluate the influence of different post systems on the biomechanicalbehavior of teeth with a severe loss of remaining coronal structure.Materials and Methods:Fifty standardized bovine teeth (n=10 per group) wererestored with: cast post-and-core (CPC), prefabricated metallic post (PFM), paral-lel glass-fiber post (P-FP), conical glass-fiber post (C-FP), or composite core (nopost, CC). The survival rate during thermomechanical challenging (TC), the frac-ture strength (FS), and failure patterns (FP) were evaluated. Finite element modelsevaluated the stress distribution after the application of 100 N.Results:All specimens survived TC. Similar FS was observed among post-containinggroups. Groups P-FP and CC presented 100% repairable fractures. The von Misesanalysis showed the maximum stresses into the root canal in groups restored withmetallic posts. Glass-fiber posts and CC presented the maximum stresses at the loadcontact point. Glass-fiber groups showed lower stresses in the analysis of maximalcontact pressure; CPC led to the highest values of contact pressure. The modifiedvon Mises (mvM) stress in dentin did not show differences among groups. Moreover,mvM values did not reach the dentin fracture limit for any group.Conclusions:The type of intracanal post had a relevant influence on the biomechan-ical behavior of teeth with little remaining coronal structure
local.publisher.countryBrasil
local.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORA
local.publisher.initialsUFMG
local.url.externahttps://onlinelibrary.wiley.com/doi/10.1111/jopr.12804

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