Journal
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY
Volume 110, Issue 5, Pages E88-E92Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.tripleo.2010.05.069
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- Tehran University of Medical Sciences and Health Services [7063]
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Objective. The purpose of this study was to compare the bond strength of Resilon/Epiphany self-etch (SE) and gutta-percha/AH26 after different irrigation protocols. Study design. Extracted single-rooted human teeth were divided into 4 groups and prepared. According to irrigation protocols, groups were: 5.25% NaOCl followed by 17% ethylenediaminetetraacetic acid (EDTA) (groups 1 and 2); and 1.3% NaOCl followed by MTAD (a mixture of tetracycline isomer, an acid, and a detergent) (groups 3 and 4). The root canals were obturated with either gutta-percha/AH26 (groups 1 and 3) or Resilon/Epiphany SE (groups 2 and 4). Push-out bond strength and failure modes were determined. Results. Gutta-percha/AH26 showed significantly higher bond strength than Resilon/Epiphany SE. The group with 5.25% NaOCl + EDTA and gutta-percha had a significantly higher bond strength than all of the other groups (P < .05); 1.3% NaOCl + MTAD with gutta-percha showed significantly higher bond strength than 5.25% NaOCl + EDTA with Resilon and 1.3% NaOCl + MTAD with Resilon. There was no significant difference between the bond strengths of the Resilon groups (P > .05). The failure mode for all of the experimental groups was mainly adhesive. Conclusions. Irrigation with 5.25% NaOCl + EDTA can be a better conditioner before using gutta-percha/AH26. The bond strength of Resilon/Epiphany SE was not different after irrigation with 5.25% NaOCl + EDTA or 1.3% NaOCl + MTAD. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010;110:e88-e92)
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