- 作者：Noushin Shokouhinejad ; Mohammad R. Sharifian ; Maral Jafari ; Mohammad A. Sabeti
- 刊名：Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology
- 出版年：2010
- 出版时间：November 2010
- 年：2010
- 卷：110
- 期：5
- 页码：e88-e92
- 全文大小：155 K
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.