Effect of irrigation methods on the adhesion of Resilon/Epiphany sealer and gutta-percha/AH 26 sealer to intracanal dentin.
10.5395/JKACD.2008.33.2.098
- Author:
Seo Kyong KIM
1
;
Yun Chan HWANG
;
In Nam HWANG
;
Won Mann OH
Author Information
1. Department of Conservative Dentistry, School of Dentistry, DSRI, Chonnam National University, BK21, Korea. wmoh@chonnam.ac.kr
- Publication Type:Original Article
- Keywords:
Push-out bond strength;
Gutta-percha/AH 26 sealer;
Resilon/Epiphany sealer;
Obturation materials;
Irrigation methods
- MeSH:
Adhesives;
Collodion;
Dentin;
Edetic Acid;
Humans;
Incisor;
Root Canal Filling Materials;
Tooth
- From:Journal of Korean Academy of Conservative Dentistry
2008;33(2):98-106
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The purpose of this study was to evaluate whether intracanal irrigation method could affect the adhesion between intracanal dentin and root canal filling materials (Gutta-percha/AH 26 sealer and Resilon/Epiphany sealer). Thirty extracted human incisor teeth were prepared. Canals were irrigated with three different irrigation methods as a final rinse and obturated with two different canal filling materials (G groups : Gutta-percha/AH 26 sealer, R groups : Resilon/Epiphany sealer) respectively. Group G1, R1 - irrigated with 5.25% NaOCl. Group G2, R2 - irrigated with 5.25% NaOCl, sterile saline. Group G3, R3 - irrigated with 5.25% NaOCl, 17% EDTA, sterile saline. Thirty obturated roots were horizontally sliced and push-out bond strength test was performed in the universal testing machine. After test, the failure patterns of the specimens were observed using Image-analyzing microscope. The results were as follows. 1. Gutta-percha/AH 26 sealer groups had significantly higher push-out bond strength compared with the Resilon/Epiphany sealer groups (p < 0.05). 2. Push-out bond strength was higher when using 17% EDTA followed by sterile saline than using NaOCl as a final irrigation solution in the Resilon/Epiphany sealer groups (p < 0.05). 3. In the failure pattern analysis, there was no cohesive failure in Group G1, G2, and R1. Gutta-percha/AH 26 sealer groups appeared to exhibit predominantly adhesive and mixed failure patterns, whereas Resilon/Epiphany sealer groups exhibited mixed failures with the cohesive failure occurred within the Resilon substrate.
