Corrigendum to “Biomechanical Evaluation of a Tooth Restored with High Performance Polymer PEKK Post-Core System: A 3D Finite Element Analysis”

Lee, Ki Sun; Shin, Joo Hee; Kim, Jong‐Eun; Kim, Jeehwan; Lee, Won Chang; Shin, Sang Wan; Lee, Jeong Yol

doi:10.1155/2017/7196847

Cited by 34 publications

(30 citation statements)

References 1 publication

(1 reference statement)

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“…A dental post designed using a high-modulus material clearly alters the mechanical behavior of the restored tooth [ 11 , 32 ]. To prevent catastrophic root fracture, fiberglass posts and resin cores are currently used as post-core systems [ 12 ]. The performance of post-and-core systems have been widely investigated [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

“…The restoration of endodontically treated teeth represents a challenge as it generally involves the use of both metals and non-metallic materials [ 11 ]. In this field, many dental post-core systems have been used [ 11 , 12 ]. Initially, metal posts were chosen due to their long-term safety.…”

Section: Introductionmentioning

confidence: 99%

“…Initially, metal posts were chosen due to their long-term safety. As a consequence of mismatch between the elastic modulus of metal alloys and the surrounding structures, stress concentration generally occurs, often leading to catastrophic root fracture [ 12 ]. For this reason, studies have been devoted to the development of different shapes, sizes, and materials for the post [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…Considering the results of previous studies, the use of materials with a lower elastic modulus, such as fiberglass-reinforced composites, may provide more favorable stress distribution. However, these composite posts have an elastic modulus, often ranging from 45.7 to 53.8 GPa [ 12 , 13 ], that is lower than that of metal posts, e.g., 95 GPa for gold and 110 GPa for titanium [ 12 , 14 ], but is still higher than those of natural tissues, which is 18.6 GPa for dentin [ 12 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

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Theoretical Design of Multilayer Dental Posts Using CAD-Based Approach and Sol-Gel Chemistry

et al. 2018

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A computer-aided design (CAD)-based approach and sol-gel chemistry were used to design a multilayer dental post with a compositional gradient and a Young’s modulus varying from 12.4 to 2.3 GPa in the coronal-apical direction. Specifically, we propose a theoretical multilayer post design, consisting of titanium dioxide (TiO2) and TiO2/poly(ε-caprolactone) (PCL) hybrid materials containing PCL up to 24% by weight obtained using the sol-gel method. The current study aimed to analyze the effect of the designed multilayer dental post in endodontically treated anterior teeth. Stress distribution was investigated along and between the post and the surrounding structures. In comparison to a metal post, the most uniform distributions with lower stress values and no significant stress concentration were found when using the multilayer post.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Theoretical Design of Multilayer Dental Posts Using CAD-Based Approach and Sol-Gel Chemistry

et al. 2018

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“…In the use of both fiberglass and metal posts, there is a considerable loss of dental hard substance at the root level where the post is placed. Both fiberglass and metal posts have a higher modulus of elasticity than dentin, which increases the risk of fractures [ 13 , 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Post Placement and Restoration of Endodontically Treated Canines: A Finite Element Analysis Study

Popescu

Popa

Nicola

et al. 2022

IJERPH

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The purpose of this study was to show the improved outcomes of restoring endodontically treated teeth with fiberglass posts compared to restorations using metal posts. In our study, we used the Finite Element Method (FEM), which is based on the principle that a physical model that supports a given load distributes the stress throughout its volume. We sought to assess what stress results in a tooth when it is restored using a fiberglass post compared to restoration using a metal post. The finite element analysis showed that a system consisting of a tooth with a fiberglass post is more stable in terms of the maximum stress than a system consisting of a tooth with a metal post. The maximum displacements and deformations were obtained in the case of a canine restored with a fiberglass post, which showed that this system had a high elasticity, therefore, higher strength than a canine restored with a metal post, which had high rigidity.

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Custom and prefabricated PolyEtherKetoneKetone (PEKK) post‐core systems bond strength: Scanning electron microscopy evaluation

Güven

Dayan

Yıldırım

et al. 2020

Microscopy Res & Technique

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The present study evaluated the bond strengths of prefabricated PolyEtherKetoneKetone (PEKK) posts, PEKK posts custom‐configured according to root‐canal size, and conventional fiber posts. A total of 30 maxillary incisors were randomly divided into three groups, as follows: Group 1: fiber posts; Group 2: prefabricated PEKK posts; Group 3; custom‐made PEKK posts. Following endodontic treatment, post spaces were prepared, and posts were cemented with resin cement. Push‐out bond strength testing was performed using a universal testing machine, and fractures modes were examined under a scanning electron microscope. Data were analyzed using One‐way ANOVA and Tukey's HSD tests, with the level of significance set at .05. The highest bond‐strength values in the cervical section were observed with the custom‐made PEKK post (17.3470 MPa), whereas the highest bond‐strength values in the middle and apical sections were observed with the conventional fiber posts (11.5375 MPa and 6.8625 MPa, respectively). Bond‐strength values for all posts systems decreased in a cervical to apical direction. PEKK posts are a suitable alternative to fiber posts. Although custom‐made PEKK posts demonstrated better bond strength than prefabricated PEKK posts, further studies are needed to evaluate their clinical performance.

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Corrigendum to “Biomechanical Evaluation of a Tooth Restored with High Performance Polymer PEKK Post-Core System: A 3D Finite Element Analysis”

Cited by 34 publications

References 1 publication

Theoretical Design of Multilayer Dental Posts Using CAD-Based Approach and Sol-Gel Chemistry

Theoretical Design of Multilayer Dental Posts Using CAD-Based Approach and Sol-Gel Chemistry

Post Placement and Restoration of Endodontically Treated Canines: A Finite Element Analysis Study

Custom and prefabricated PolyEtherKetoneKetone (PEKK) post‐core systems bond strength: Scanning electron microscopy evaluation

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