J Herbmed Pharmacol. 2023;12(4): 500-504.
doi: 10.34172/jhp.2023.44919

Scopus ID: 85173639247
  Abstract View: 695
  PDF Download: 371

Original Article

Effect of gallic acid as a final irrigant on push-out bond strength of an epoxy resin sealer to root canal dentin

Sarath Kumar 1 ORCID logo, Kavitha Sanjeev 2 ORCID logo, Nagarathinam Sundaramoorthy 2*, Sekar Mahalaxmi 2 ORCID logo

1 Department of Conservative Dentistry and Endodontics, Tagore Dental College, Chennai 600127, Tamil Nadu, India
2 Department of Conservative Dentistry and Endodontics, SRM Institute of Science and Technology, SRM Dental College, Chennai 600089, Tamil Nadu, India
*Corresponding Author: Nagarathinam Sundaramoorthy, Email: nagarats@srmist.edu.in


Introduction: Ethylenediaminetetraacetic acid (EDTA), a widely used chelating agent, compromises the bond strength of resin-based sealers when used as a final irrigating solution. Hence, the push-out bond strength of AH Plus, a resin-based sealer, was analyzed when gallic acid, “a chelator” was used as a last irrigating solution.

Methods: Forty human single-rooted teeth were accessed and randomly assigned into 4 groups (n = 10): EA (17% EDTA), MA (7% maleic acid), GA (10% gallic acid), and SA (saline). After irrigation, the root canals were coated with AH Plus sealer and obturated using gutta-percha. The root canals were sectioned horizontally into coronal, middle, and apical thirds for evaluating the push-out bond strength. A universal testing machine with a compressive loading of 1 mm/min was employed to test the samples.

Results: An increased push-out bond strength was noted with GA in coronal one-third compared to EA and SA but not significant compared to MA (P > 0.05). Similar observations were seen in the middle one-third; however, it was statistically significant compared to all other groups (P < 0.05). Also, the difference between the groups in the apical one-third was not significant. SA showed the lowest push-out bond strength than experimental groups, which was significant in all three sections (P < 0.05).

Conclusion: The final rinse of 10% gallic acid increased the push-out bond strength of AH Plus to the root dentin in all thirds of the root canal. Hence, gallic acid 10% might be an effective alternative solution in place of synthetic chelators.

Implication for health policy/practice/research/medical education:

Gallic Acid can be a preferred final irrigating solution during chemo-mechanical preparation when employing the resin-based AH Plus sealer. The higher bond strength of the sealer to root dentin signifies improved sealing ability, which results in less microleakage.

Please cite this paper as: Kumar S, Sanjeev K, Sundaramoorthy N, Mahalaxmi S. Effect of gallic acid as a final irrigant on push-out bond strength of an epoxy resin sealer to root canal dentin. J Herbmed Pharmacol. 2023;12(4):500-504. doi: 10.34172/ jhp.2023.44919.

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Submitted: 23 Feb 2023
Revision: 15 Apr 2023
Accepted: 16 May 2023
ePublished: 10 Aug 2023
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