Effect of the several epoxy resin-based sealer compositions on adhesion interface in radicular dentin after calcium hydroxide intracanal medication removal

Pedrinha, Victor Feliz; Alencar, Cristiane-de Melo; Jassé, Fernanda-Ferreira-de Albuquerque; Zaniboni, Joissi Ferrari; Dantas, Andréa Abi Rached; Andrade, Flaviana-Bombarda de; Kuga, Milton Carlos

doi:10.4317/jced.58375

Cited by 4 publications

(1 citation statement)

References 32 publications

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“…However, the total removal of the Ca(OH)2 is a crucial factor in the three-dimensional obturation process, since the remnants of the material in the root canal interfere negatively with the dentin-sealant adhesion interface, reducing the long-term success of endodontic therapy ( 11 - 14 ). Ca(OH)2 remnants affect the physical properties of the sealant, modifying the setting time, decreasing the flow, as well as a physical barrier that obstructs the penetration of the sealant in the dentinal tubules ( 3 - 5 , 15 , 16 ).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of alendronic acid solution in removal calcium hydroxide from root canals

Mejía-Haro,

Méndez-González,

Zavala-Alonso

et al. 2024

J Clin Exp Dent

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Background Intracanal medication is considered an alternative after instrumentation in the case of pulp necrosis. However, the elimination of this medication plays an important role in the obturation process, which is why various chelating solutions have currently been studied for this purpose. Therefore, this study aimed to analyze the irrigant based on alendronic acid (AA), which contains in its chemical structure functional groups capable of forming complexes with Ca2+ ions. Material and Methods 90 single-rooted teeth were crowned and standardized to a length of 13 mm. They were instrumented with a progressive K file (Dentsply Maillefer) from #15 to #30. Ca(OH)2 was placed as intracanal medication for 7 days. The roots were randomly divided into the following 4 experimental groups (n=13) according to the irrigant used: 2.25% NaClO, calcium suspension, 0.22% AA, and 10% citric acid; as well as negative (n=5; saline solution) and positive controls (n=5, 17% EDTA). The roots were divided longitudinally and the % of permeable dentinal tubules (% PDT) was determined by thirds (cervical, middle and apical), by analyzing the micrographs obtained by scanning electron microscope (SEM) and the imageJ program. The quantification of the remaining Ca2+ was determined using the Arsenazo III technique. Results The Kruskal Wallis test was used for the % of permeable dentinal tubules where a significant difference was determined for the different thirds ( p <0.005). In the apical third, citric acid and AA irrigants presented a median of 17.71 and 17.51 % PDT respectively. In relation to the quantification of the remaining total calcium, the lowest value was found with AA with a concentration of 4.83 mmol/L. Conclusions The 0.22% AA solution has the same capacity to remove Ca(OH)2 from the root canal walls as 17% EDTA and 10% citric acid. Key words: Alendronic acid, calcium hydroxide, citric acid, EDTA, irrigant solution,root canal.

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Section: Introductionmentioning

confidence: 99%

Efficacy of alendronic acid solution in removal calcium hydroxide from root canals

Mejía-Haro,

Méndez-González,

Zavala-Alonso

et al. 2024

J Clin Exp Dent

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Comparative Analysis of AH Plus Bond Strength to Root Canal Dentin and Adhesive Interface Quality after Calcium Hydroxide Removal using Different Irrigation Protocols

Savaris,

Isoton,

Fluck

et al. 2024

Journal of Endodontics

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Carrier-Based Obturation: Effect of Sonication Technique on Sealer Penetration in Dentinal Tubules: A Confocal Laser Scanning Microscope Study

et al. 2022

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(1) Background: In endodontics, anatomical complexities and irregularities in the root canal system may interfere with sealer penetration, increasing the risk of treatment failure. This work aimed to investigate the effects of sonicated Thermafil (Dentsply, Tulsa Dental Specialties, Johnson City, TN, USA) on sealer penetration into the dentinal tubules. (2) Methods: Thirty teeth with single round-shaped root canals were used to compare Sonicated Thermafil with sonication (ST—10 teeth), System B (EIE Analytical Technology, Orange, CE, USA) (SB—10 teeth), and Thermafil without sonication (T—10 teeth). A confocal laser scanning microscope (CLSM) was used to determine the depth, area, and percentage of sealer penetration into the dentinal tubules. (3) Results: ST showed the deepest average penetration at 6 mm from the apex compared to SB (p < 0.01) and T (p < 0.01) and at 3 mm compared to SB (p < 0.01). In addition, it had the highest penetration values at both levels compared to SB (p < 0.01) and T (p < 0.05) and a higher penetration area at 6 mm compared to T (p < 0.05) and SB (p < 0.05). (4) Conclusion: Sonic activation can improve the carrier-based obturation technique thanks to deeper sealer penetration and thus better retention of materials.

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Effect of the several epoxy resin-based sealer compositions on adhesion interface in radicular dentin after calcium hydroxide intracanal medication removal

Cited by 4 publications

References 32 publications

Efficacy of alendronic acid solution in removal calcium hydroxide from root canals

Efficacy of alendronic acid solution in removal calcium hydroxide from root canals

Comparative Analysis of AH Plus Bond Strength to Root Canal Dentin and Adhesive Interface Quality after Calcium Hydroxide Removal using Different Irrigation Protocols

Carrier-Based Obturation: Effect of Sonication Technique on Sealer Penetration in Dentinal Tubules: A Confocal Laser Scanning Microscope Study

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