Can fiber posts increase root stresses and reduce fracture?

A. F V Santos, J. B C Meira, C. B. Tanaka, T. A. Xavier, R. Y. Ballester, R. G. Lima, Carmem Pfeifer, A. Versluis

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

The clinical success of fiber posts has been attributed to their lower elastic modulus. The tested hypothesis was that fiber posts could lead to lower risk of post debonding and lower risk of root fracture, despite an increase in root stresses. Stress analyses were carried out with a 3D finite element model of a premolar restored with a metallic or a fiber post. Bonded and non-bonded post/cement interface conditions were simulated. We calculated risk-of-fracture indices by determining the highest principal stress values divided by the tensile strength. Shear stresses along the post/cement interface were analyzed for the bonded models. Compared with the premolar restored with a metallic post, the fiber post generated lower stresses along the interface and higher stresses in the root. However, with the fiber post, fracture was less likely to occur in the root, since its core and post fracture indices were higher.

Original languageEnglish (US)
Pages (from-to)587-591
Number of pages5
JournalJournal of Dental Research
Volume89
Issue number6
DOIs
StatePublished - Jun 2010
Externally publishedYes

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Stress Fractures
Bicuspid
Tensile Strength
Elastic Modulus

Keywords

  • Biomechanics
  • Endodontically treated teeth
  • Finite element analysis
  • Intra-radicular posts
  • Root fracture

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Santos, A. F. V., Meira, J. B. C., Tanaka, C. B., Xavier, T. A., Ballester, R. Y., Lima, R. G., ... Versluis, A. (2010). Can fiber posts increase root stresses and reduce fracture? Journal of Dental Research, 89(6), 587-591. https://doi.org/10.1177/0022034510363382

Can fiber posts increase root stresses and reduce fracture? / Santos, A. F V; Meira, J. B C; Tanaka, C. B.; Xavier, T. A.; Ballester, R. Y.; Lima, R. G.; Pfeifer, Carmem; Versluis, A.

In: Journal of Dental Research, Vol. 89, No. 6, 06.2010, p. 587-591.

Research output: Contribution to journalArticle

Santos, AFV, Meira, JBC, Tanaka, CB, Xavier, TA, Ballester, RY, Lima, RG, Pfeifer, C & Versluis, A 2010, 'Can fiber posts increase root stresses and reduce fracture?', Journal of Dental Research, vol. 89, no. 6, pp. 587-591. https://doi.org/10.1177/0022034510363382
Santos AFV, Meira JBC, Tanaka CB, Xavier TA, Ballester RY, Lima RG et al. Can fiber posts increase root stresses and reduce fracture? Journal of Dental Research. 2010 Jun;89(6):587-591. https://doi.org/10.1177/0022034510363382
Santos, A. F V ; Meira, J. B C ; Tanaka, C. B. ; Xavier, T. A. ; Ballester, R. Y. ; Lima, R. G. ; Pfeifer, Carmem ; Versluis, A. / Can fiber posts increase root stresses and reduce fracture?. In: Journal of Dental Research. 2010 ; Vol. 89, No. 6. pp. 587-591.
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