E-ISSN 2548-0839
Epoxy Resin-Based Root Canal Sealer Penetration into Dentin Tubules Does not Improve Root Filling Dislodgement Resistance []
. 2017; 2(1): 7 | DOI: 10.5152/eej.2017.16059

Epoxy Resin-Based Root Canal Sealer Penetration into Dentin Tubules Does not Improve Root Filling Dislodgement Resistance

Gustavo De- Deus1, Maria Claudia Brand„o2, Erick Miranda Souza3, Claudia Reis4, KŠtia Reis5, Ricardo Machado6, Prasanna Neelakantan7
1Department of Endodontics, Fluminense Federal University, Rio de Janeiro, Brazil
2Department of Peridontology, Central Airforce Hospital, Rio de Janeiro, Brazil
3Department of Endodontics, Federal University of Maranh„o, Maranh„o, Brazil
4Department of Dental Clinic, Federal University of Espirito Santo, Espirito Santo, Brazil
5Department of Prosthodontics and Dental Materials, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
6Clinical Practice Limited to Endodontics, Navegantes, Brazil
7Department of Endodontics, University of Hong Kong, Hong Kong

Objective: This study sought to evaluate the effect of the penetration of an epoxy resin-based root canal sealer into dentin tubules on the force required to dislodge the root canal filling.
Methods: Sixty extracted human central incisors with single canals were decoronated, instrumented, and filled with gutta-percha and AH Plus sealer labeled with 0.1% rhodamine B dye. The roots were further sec- tioned horizontally at 3, 6, and 8 mm from the apex. The coronal surfaces of the resulting 180 slices were evaluated using confocal laser scanning microscopy to measure the amount of sealer that penetrated into the dentin tubules. To quantify the force required to dislocate the root filling material, the root fillings of the slices were subjected to a dislodgement resistance test (push-out). Spearmanís rho correlation test was fur- ther used to test the correlation between the push-out bond strength and sealer penetration into the dentin tubules (P<0.05).
Results: No significant correlation was observed between sealer penetration into the dentin tubules and the force required to dislodge the root canal filling (P=0.626).
Conclusion: Following the results of this study, the penetrating ability of the AH Plus sealer into dentin tu- bules has no correlation with the force required to dislodge the root canal filling.

Keywords: Dentin tubules, dislodgement resistance, epoxy sealer.

Gustavo De- Deus, Maria Claudia Brand„o, Erick Miranda Souza, Claudia Reis, KŠtia Reis, Ricardo Machado, Prasanna Neelakantan. Epoxy Resin-Based Root Canal Sealer Penetration into Dentin Tubules Does not Improve Root Filling Dislodgement Resistance. . 2017; 2(1): 7

Corresponding Author: Ricardo Machado, Brazil

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