Effect of fiber posts on the fracture resistance of endodontically treated anterior teeth with cervical cavities: An in vitro study

Abduljawad, Mohammed; Samran, Abdulaziz; Kadour, Jadalkareem; Al-Afandi, Mahmoud; Ghazal, Mohamad; Kern, Matthias

doi:10.1016/j.prosdent.2015.12.011

Cited by 50 publications

(30 citation statements)

References 25 publications

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“…4,5 Cementing a post into the root of an endodontically treated tooth improves the fracture resistance of maxillary incisor teeth with cervical cavities. 6 Generally, 2 different kinds of posts are currently used: cast metal posts and prefabricated posts. Cast metal posts require a direct pattern or impression of the root cavity, a time-consuming and expensive procedure.…”

mentioning

confidence: 99%

Influence of inhomogeneous dental posts on stress distribution in tooth root and interfaces: Three-dimensional finite element analysis

Mahmoudi

Saidi

Amini

et al. 2017

The Journal of Prosthetic Dentistry

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mentioning

confidence: 99%

Influence of inhomogeneous dental posts on stress distribution in tooth root and interfaces: Three-dimensional finite element analysis

Mahmoudi

Saidi

Amini

et al. 2017

The Journal of Prosthetic Dentistry

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“…Structurally, the compromised teeth are susceptible to fail because the fracture strength is reduced since the circumferential canal wall thickness is decreased (7). For these compromised teeth, the best restorative materials should present elastic modulus similar to dentine, to create homogeneous stress distribution and improved fracture strength (8), as well as, to reduce the incidence of restoration failure as catastrophic fracture (9,10). Fiber-reinforced posts (FRP) have fracture strength which is not influenced by post fit or post length (11,12).…”

Section: Introductionmentioning

confidence: 99%

Bond strength of cemented fiber posts to teeth with simulated internal root resorption

et al. 2020

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Background: Teeth with internal root resorption (IRR) have guarded prognosis, considering that IRR defect could influence on the post bond strength. The aim of this study was to evaluate the bond strength and the bond interface between different glass fiber-reinforced posts (FRP) after cementation in teeth with simulated internal root resorption (IRR). Material and Methods: Forty-five (45) human premolar roots with simulated IRR were embedded in acrylic resin blocks and cross-sectioned into two segments, enabling them to be re-approximated by screws. Intracanal medication was inserted for 15-days, removed by passive ultrasonic irrigation (PUI) and examined by stereomicroscopy. The push-out bond strength of two fiber reinforced composite posts (Rebilda Post -RP) and Rebilda Post GT -GT, (VOCO) were evaluated at the cervical and IRR regions (n = 20). And, the bonded interface between resin cement and root dentine was analysed by scanning electron microscopy (SEM). Results: 62.5% of IRR were not completely cleaned by PUI. Bond strength values at the cervical region (9.8 and 14.6 MPa) were higher than the IRR region (6.3 and 4.2 MPa). Micrographies showed bubbles in the cement and spaces in the bonded interface. Conclusions: RP post showed better bond strength at the cervical region while GT had better bond strength at the IRR region.

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“…Review studies found that for a metal post-and-core crown, the average working life was 7.3 years, the average failure rate was 11.2%, and the failure problems were post-and-core abscission or tooth root fracture. [5][6][7][8] For the fiber and resin post-and-core crown, the 1-to 3-year success rate was 92.3-93.5%, the 7-to 11-year success rate was 89-93%, and the failure problems were post-and-core abscission or edge leakage. [9][10][11] Preventing the post-and-core ecclasis and tooth root fracture is an important research issue.…”

Section: Introductionmentioning

confidence: 99%

Customized Post-and-Core Design and Stress Analysis for Posterior Tooth Prosthesis

Zheng

Wang

2019

J. Mech. Med. Biol.

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A post-and-core crown is widely used in prosthetic dentistry; however, in clinical treatment, it easily causes root fracture and tooth penetration. To address these problems, this study aimed to present a customized post-and-core design for the posterior tooth implant. First, a residual tooth and its root canal were reconstructed. Then, the root canal surface was extracted, the surface curvature and length parameters were defined, and the customized post-and-core design was developed. Finally, the tooth, root canal, and post-and-core with different implant lengths in five masticatory directions were analyzed using finite element analysis to evaluate the stress distribution. The results showed that, with the similar shape of the post-and-core structure and the root canal, the tooth stress trend was uniform. When the length of the postand-core structure L was 0 mm, that is, it was two thirds of the root canal length, the root canal stress was minimum. Therefore, the customized design of the post-and-core structure could well adapt to any kind of root canal, and the length of the post-and-core structure L provided guidance for the post-and-core crown prosthesis in clinic.

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Effect of fiber posts on the fracture resistance of endodontically treated anterior teeth with cervical cavities: An in vitro study

Cited by 50 publications

References 25 publications

Influence of inhomogeneous dental posts on stress distribution in tooth root and interfaces: Three-dimensional finite element analysis

Influence of inhomogeneous dental posts on stress distribution in tooth root and interfaces: Three-dimensional finite element analysis

Bond strength of cemented fiber posts to teeth with simulated internal root resorption

Customized Post-and-Core Design and Stress Analysis for Posterior Tooth Prosthesis

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