Shear Bond Strength of Endodontic Sealers to Dentin with and without Smear Layer and Gutta Percha : An in Vitro Study

Hasan, Rana Kadhim; Al-Hashimi, Majida K.

doi:10.12816/0015144

Cited by 2 publications

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“…3 The removal of the smear layer advances sealer adhesion and affects the bond strength of the AH Plus sealer. 4,5 Smear layer removal increases the contact area and the sealing ability of the sealer, so it produces better adaptation. Smear layer removal enables the sealer tags extension to the dentin tubules, which results in the formation of mechanical locking and efficient micro-retention.…”

Section: Introductionmentioning

confidence: 99%

Effect of different final irrigation solutions on push-out bond strength of root canal filling material

Rahmatillah¹,

Erlita²,

Maglenda³

2020

Dent. J.

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Background: The adhesion of root canal filling material to dentin is one of the crucial factors in determining the success of endodontic treatment. However, the smear layer that forms during instrumentation serves as an interface that impedes the bonding mechanism of the filling material. A proper irrigation solution is required to remove the smear layer and provide a dentin surface that supports the bonding mechanism of the filling material in establishing good adhesion. Purpose: This study aims to evaluate and compare the bond strength of filling material with different final irrigation solutions. Methods: Mandibular premolars were prepared by a crown down, pressure-less technique and divided into three final irrigation groups (2.5% NaOCl, 17% EDTA and 20% citric acid). The root canal of each tooth was obturated using epoxy sealer and gutta-percha. A two-millimetre-thick section of the apical third portion of each group was arranged for the push-out assessment using a universal testing machine in an apical to coronal direction at 1 mm/min crosshead speed. Results: A one-way ANOVA test indicated the difference in push-out bond strength among the groups (p<0.05). A post hoc Bonferroni test presented a statistically significant difference in the bond-strength value between the 2.5% NaOCl group compared with the 20% CA group (p<0.05). Conclusion: The push-out bond strength of root canal filling material is increased by applying a chelating agent as the final irrigation solution where 20% of CA presents the highest push-out bond strength.

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Section: Introductionmentioning

confidence: 99%

Effect of different final irrigation solutions on push-out bond strength of root canal filling material

Rahmatillah¹,

Erlita²,

Maglenda³

2020

Dent. J.

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Shear Bond Strength of Ah26 to Human Dentin Treated with Dimethyl Sulfoxide (Dmso)

2022

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The purpose of this study was to examine the bond strength of AH26 to human coronal dentin exposed to DMSO. A total of 70 dentin specimens were equally divided into two groups. Each dentin surface was pre-treated with 2 mL of 2.5% NaOCl, 3 mL of EDTA 17%, and distilled water. One group was finally rinsed with 50% DMSO. Following the AH26 application, the bond strength was tested by subjecting the samples to a shear load at a crosshead speed of 0.5 mm/min using universal testing equipment. The results according to paired samples t-test indicated that there was a statistically insignificant difference between the two groups. Therefore, DMSO had no effect on the bond strength of AH26 root sealer to dentin.

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Shear Bond Strength of Endodontic Sealers to Dentin with and without Smear Layer and Gutta Percha : An in Vitro Study

Cited by 2 publications

References 0 publications

Effect of different final irrigation solutions on push-out bond strength of root canal filling material

Effect of different final irrigation solutions on push-out bond strength of root canal filling material

Shear Bond Strength of Ah26 to Human Dentin Treated with Dimethyl Sulfoxide (Dmso)

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