Effects of Na<scp>OC</scp>l, <scp>EDTA</scp> and <scp>MTAD</scp> when applied to dentine on stress distribution in post‐restored roots with flared canals

Bellí, Sema; Eraslan, Oğuz; Eskitaşçıoğlu, Murat; Eskitaşçıoğlu, Gürcan

doi:10.1111/iej.12260

Cited by 13 publications

(11 citation statements)

References 57 publications

(146 reference statements)

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“…The results of our study support the findings in the literature that EDTA exerts negative effects on the mechanical properties of dentin (10,18–21). Although EDTA showed no statistical difference in the dentin flexural strength test, when compared to the other study groups, EDTA resulted in lower strength values than in the control group in the dentin cohesive strength and root fracture tests.…”

Section: Discussionsupporting

confidence: 91%

Effect of glycolic acid and EDTA on dentin mechanical properties

et al. 2021

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The aim of this study was to evaluate the effect of glycolic acid (GA) and EDTA on dentin mechanical properties. For the cohesive strength, flexural strength and fracture strength tests, the hourglass of root dentin, dentin sticks and roots standardised to 1 mm thickness were used respectively. ANOVA and Tukey tests were used for statistical analysis (P < 0.05). The results showed that EDTA and GA 17% reduced the cohesive strength values when compared to distilled water (control; P = 0.0022 and P = 0.0016 respectively), whereas the values for GA 10% group were similar to those of the control group (P = 0.093). No statistically significant difference was found among the groups for the flexural strength test (P = 0.1974). Fracture strength test showed that EDTA and GA 17% were statistically similar to each other (P = 0.7694) and statistically inferior to GA 10% (P = 0.0007 and P = 0.0004 respectively). It was concluded that 10% GA showed fewer negative effects on dentin mechanical properties.

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Section: Discussionsupporting

confidence: 91%

Effect of glycolic acid and EDTA on dentin mechanical properties

et al. 2021

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“…The post and core with high elastic modulus may increase fracture risk in roots with flared canals by increasing the stresses within root dentin. Therefore, an individually shaped post-core system constructed with a material that has an elastic modulus close to dentin should be used in weak roots 15) . The fracture resistance strength of the metal cast post-and-core is obviously larger than that of the single prefabricated fiber postand-core, which is similar to the results of Varvara et al 16) .…”

Section: Discussionmentioning

confidence: 99%

Fracture behaviors of maxillary central incisors with flared root canals restored with CAD/CAM integrated glass fiber post-and-core

Pang

Feng²,

Zhu

et al. 2019

Dental Materials Journal

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The objective was to evaluate the fracture resistance properties of maxillary incisors with flared canals restored with computer aided design and computer aided manufacture (CAD/CAM) integrated glass fiber post-and-core. Thirty prepared flared root canals were selected in vitro and restored with CAD/CAM integrated fiber post-and-core (Group A), prefabricated fiber posts (Group B), and cast gold alloy (Group C), respectively. After submitted to fatigue loading, each specimen was subjected to a static loading until fracture. Analysis of variance (ANOVA) tests were used to determine statistical differences. The mean fracture strengths of Groups A and C were significantly higher than those of Group B, whereas no differences were observed between Groups A and C. In addition, reparable fracture modes were mostly observed in Group A while irreparable and catastrophic fractures were mostly found in Groups B and C. These results demonstrate that, in comparison to traditional treatments, CAD/CAM integrated glass fiber post-and-core restoration significantly enhances the fracture resistance of flared root canals.

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“…According to Belli et al [3], the elastic modulus of the material used for IRs influences the fracture resistance because a post and core with a high elastic modulus generate a greater concentration of stresses on the root dentin, resulting in an increased risk of fracture of the IR-tooth system. erefore, the preceding study suggested that a post and core system using a material with an elastic modulus similar to that of dentin should be implemented to ensure adequate stress dissipation and thus avoid areas of concentrated stress in the walls of the root that can generate failures at the post-cement-dentin interface or radicular fractures [3,26]. From this perspective, glass fiber systems have shown excellent biomechanical behavior compared to other materials [27].…”

Section: Agreements and Disagreements With Other Studies Ormentioning

confidence: 99%

Efficacy of CAD/CAM Glass Fiber Posts for the Restoration of Endodontically Treated Teeth

Gutiérrez

Guerrero

Baldión

2022

International Journal of Biomaterials

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Objective. The aim of this systematic review was to provide an overview of available scientific evidence regarding the comparative efficacy of computer-aided design (CAD) and computer-aided manufacturing (CAM) glass fiber posts with prefabricated and metal cast posts for the restoration of endodontically treated teeth (ETT). Methods. This systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Electronic and manual searches were performed using the PubMed, SciELO, Cochrane, ScienceDirect, Web of Science, and EBSCO databases. The reference lists of the selected papers were reviewed to identify relevant papers. There were no year restrictions, and eligible studies were those in English publications and describing in vitro studies evaluating intraradicular retainers (IRs) for (i) fracture resistance, (ii) bond strength, (iii) adaptation, and (iv) cement layer thickness. Literature reviews, systematic reviews, meta-analyses, case reports, in vitro studies with <8 specimens, and noncomparative trials involving prefabricated or metal cast posts were excluded. The authors of this review independently screened the search results, extracted data, and assessed the risk of bias. Results. No significant differences were found in fracture resistance between prefabricated and CAD/CAM glass fiber posts or between CAD/CAM glass fiber and metal cast posts, although the latter demonstrated higher fracture resistance than the prefabricated glass fiber posts. Restoration with a full crown was not necessary to increase the fracture resistance in the presence of the ferrule effect. CAD/CAM glass fiber and metal cast posts had higher bond strength, lower nanoleakage, and better adaptation to the root canal. Conclusions. Despite the heterogeneity of methodologies and results reported, the results of these studies indicated that the CAD/CAM glass fiber and metal cast posts showed greater efficacy in terms of fracture resistance, retention, and adaptation, compared to prefabricated glass fiber posts.

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Effects of NaOCl, EDTA and MTAD when applied to dentine on stress distribution in post‐restored roots with flared canals

Cited by 13 publications

References 57 publications

Effect of glycolic acid and EDTA on dentin mechanical properties

Effect of glycolic acid and EDTA on dentin mechanical properties

Fracture behaviors of maxillary central incisors with flared root canals restored with CAD/CAM integrated glass fiber post-and-core

Efficacy of CAD/CAM Glass Fiber Posts for the Restoration of Endodontically Treated Teeth

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