Compressive and flexural behaviour of fibre reinforced endodontic posts

Chieruzzi, Manila; Pagano, Stefano; Pennacchi, Manuela; Lombardo, Guido; D'Errico, P; Kenny, J. M.

doi:10.1016/j.jdent.2012.08.003

Cited by 50 publications

(48 citation statements)

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“…The compressive behavior of root canal posts has been tested using vertical compression mode or a onepoint bending test 3,20,[35][36][37] . The compressive behavior of root canal posts is important in clinical dentistry because teeth are subjected to compression loads during mastication 20) .…”

Section: Discussionmentioning

confidence: 99%

“…The compressive behavior of root canal posts is important in clinical dentistry because teeth are subjected to compression loads during mastication 20) . In this respect, a one-point bending test is more appropriate than a three-point bending test to measure root canal products.…”

Section: Discussionmentioning

confidence: 99%

“…Higher values indicate higher stiffness, while lower values indicate greater flexibility. The flexural modulus is calculated by taking into account the elastic behavior of a sample within a load range that will not cause plastic deformation [19][20][21][22][23][24][25][26] . While there are published studies of root canal post materials, there are few studies concerning test conditions 21,27) .…”

Section: Introductionmentioning

confidence: 99%

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Effects of metal- and fiber-reinforced composite root canal posts on flexural properties

Kim

et al. 2016

Dent. Mater. J.

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The aim of this study was to observe the effects of different test conditions on the flexural properties of root canal post. Metaland fiber-reinforced composite root canal posts of various diameters were measured to determine flexural properties using a threepoint bending test at different conditions. In this study, the span length/post diameter ratio of root canal posts varied from 3.0 to 10.0. Multiple regression models for maximum load as a dependent variable were statistically significant. The models for flexural properties as dependent variables were statistically significant, but linear regression models could not be fitted to data sets. At a low span length/post diameter ratio, the flexural properties were distorted by occurrence of shear stress in short samples. It was impossible to obtain high span length/post diameter ratio with root canal posts. The addition of parameters or coefficients is necessary to appropriately represent the flexural properties of root canal posts.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of metal- and fiber-reinforced composite root canal posts on flexural properties

Kim

et al. 2016

Dent. Mater. J.

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“…In our study the lateral condensation method of Hatta et al [87] Fracture of the post(s) or the restored teeth themselves are among the most common failures of ETT restoration [118,119]. While the use of metal posts leads more frequently to root fracture, the most common type of failure when FRC posts are used is debonding [120] or the fracture of the post [121,122]. According to several studies, posts with an elastic modulus similar to that of dentine (i.e.…”

Section: Discussionmentioning

confidence: 78%

“…This can be explained by the structure of the tested posts. All FRC posts are made of two main components: fibres for reinforcement and a polymer matrix [120]. The matrix usually contains epoxy resins or other thermosetting polymers with a high degree of conversion and a highly cross-linked structure [130,131].…”

Section: Discussionmentioning

confidence: 99%

The Restorative Use of Fibre-Reinforced Materials in the Posterior Region

Fráter¹

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Mechanical effect of static loading on endodontically treated teeth restored with fiber‐reinforced posts

et al. 2013

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The aim of this study was to investigate the mechanical behavior of a dental system built up with fiber‐reinforced composite (FRC) endodontic posts with different types of fibers and two cements (the first one used with a primer, the second one without it). Six FRC posts were used. Each system was characterized in terms of structural efficiency under external applied loads similar to masticatory forces. An oblique force was applied and stiffness and maximum load data were obtained. The same test was used for the dentine. The systems were analyzed by scanning electron microscope (SEM) to investigate the surface of the post and inner surface of root canal after failure. The mechanical tests showed that load values in dental systems depend on the post material and used cement. The highest load (281 ± 59 N) was observed for the conical glass fiber posts in the cement without primer. There was a 50 and 85% increase in the maximum load for two of the conical posts with glass fibers and a 229% increase for the carbon fiber posts in the cement without primer as compared with the cement with primer. Moreover, almost all the studied systems showed fracture resistances higher than the typical masticatory loads. The microscopic analysis underlined the good adhesion of the second cement at the interfaces between dentine and post. The mechanical tests confirmed that the strength of the dental systems subjected to masticatory loads was strictly related to the bond at the interface post/cement and cement/dentine. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 102B: 384–394, 2014.

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Compressive and flexural behaviour of fibre reinforced endodontic posts

Cited by 50 publications

References 50 publications

Effects of metal- and fiber-reinforced composite root canal posts on flexural properties

Effects of metal- and fiber-reinforced composite root canal posts on flexural properties

The Restorative Use of Fibre-Reinforced Materials in the Posterior Region

Mechanical effect of static loading on endodontically treated teeth restored with fiber‐reinforced posts

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