Effect of Ferrule Height and Post Length on Mechanical Stress and Displacement of Endodontically Treated Maxillary Central Incisor: A Finite Element Analysis

Ishak, Muhammad Ikman; Shafi, Aisyah Ahmad; Kadir, Mohammed Rafiq Abdul; Sulaiman, Eshamsul

doi:10.1007/s40846-017-0227-3

Cited by 15 publications

(3 citation statements)

References 26 publications

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“…Corroborating findings of previous studies, the majority of fracture patterns examined under a light microscope were favorable [ 21 , 22 ]. These findings may suggest that the similarities presented between elastic modulus of the dentin (18.6 GPa), fiber-glass post (20 GPa), and resin-based materials employed (12 GPa) are able to prevent the microcracks propagation and favor the dissipation of occlusal load along the root structure and support tissues, besides decreasing the stress generated in the residual tissue [ 23 ].…”

Section: Discussionmentioning

confidence: 99%

The Influence on Fracture Resistance of Different Composite Resins and Prefabricated Posts to Restore Endodontically Treated Teeth

et al. 2023

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Recent formulations of resin-based composites have incorporated different combinations of materials. However, the mechanical and bonding behavior of these materials with intraradicular posts are unclear. This study aimed to evaluate the effect of light-cure and dual-cure resin composite posts on the fracture resistance of endodontically-treated teeth. Materials and Methods: Ninety extracted human upper canines were selected and randomly divided into nine groups (n=10): (G1) endodontically treated teeth without endodontic posts; (G2) glass-fiber post cemented with glass-ionomer cement; (G3) endodontic post by dual-cure composite resin (Rebilda DC); (G4) endodontic post by dual-cure composite resin (Cosmecore); (G5) endodontic post by dual-cure composite resin (Bis-Core); (G6) endodontic post by light-cure composite resin; (G7) glass-fiber post customized with flowable composite resin; (G8) glass-fiber post cemented with light-cure composite resin; (G9) glass-fiber post cemented with self-adhesive resin cement. After the post insertion, all specimens were subjected to mechanical (250,000 cycles) and thermocycling (6000 cycles, 5 °C/55 °C) and immediate loading at 45 degrees in a universal testing machine until fracture. The data were analyzed by one-way ANOVA and multiple comparisons using the Fisher LSD Method (p < 0 05). Results: The mean failure loads (±SD) for the groups ranged from 100.7 ± 22.6 N to 221.9 ± 48.9 N. The G1 group (without endodontic posts) had a higher fracture strength than all experimental groups (p < 0.001). Conclusions: Within the limitations, the light- and dual-cure post technique did not present lower fracture resistance values as compared to the conventional glass-fiber post.

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Section: Discussionmentioning

confidence: 99%

The Influence on Fracture Resistance of Different Composite Resins and Prefabricated Posts to Restore Endodontically Treated Teeth

et al. 2023

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“…The role of the post-and-core structure in terms of its stiffness, length, diameter, and shape has been considered and discussed extensively using FEA for anterior teeth in many previous studies. Hsu et al 13,17,36 concluded that the length of the post-and-core structure influenced its stiffness. Based on the aforementioned analysis results, the following conclusions were drawn:…”

Section: Discussionmentioning

confidence: 99%

“…Researchers have shown that different material, shape, diameter, and length of the post-and-core structure have different stress influence on the tooth body and root canal. [12][13][14][15][16][17] Therefore, designing an appropriate post-and-core crown is a key factor for the success of dental treatment.…”

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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Mechanical Design and Analysis of Safety Medical Syringe for Needlestick Injury Prevention

Ishak

Rosli

Termizi

et al. 2021

Lecture Notes in Mechanical Engineering

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Effect of Ferrule Height and Post Length on Mechanical Stress and Displacement of Endodontically Treated Maxillary Central Incisor: A Finite Element Analysis

Cited by 15 publications

References 26 publications

The Influence on Fracture Resistance of Different Composite Resins and Prefabricated Posts to Restore Endodontically Treated Teeth

The Influence on Fracture Resistance of Different Composite Resins and Prefabricated Posts to Restore Endodontically Treated Teeth

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

Mechanical Design and Analysis of Safety Medical Syringe for Needlestick Injury Prevention

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