Effect of irrigation methods on the adhesion of Resilon/Epiphany sealer and gutta-percha/AH 26 sealer to intracanal dentin

Seo-Kyong Kim; Yun-Chan Hwang; In-Nam Hwang; Won-Mann Oh

doi:10.5395/JKACD.2008.33.2.098

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Original Article Effect of irrigation methods on the adhesion of Resilon/Epiphany sealer and gutta-percha/AH 26 sealer to intracanal dentin: Seo-Kyong Kim, Yun-Chan Hwang, In-Nam Hwang, Won-Mann Oh; Journal of Korean Academy of Conservative Dentistry 2008;33(2):98-106.
DOI: https://doi.org/10.5395/JKACD.2008.33.2.098
Published online: March 31, 2008

Department of Conservative Dentistry, School of Dentistry, DSRI, Chonnam National University, BK21, Korea.

Corresponding Author: Won-Mann Oh. Department of Conservative Dentistry, School of Dentistry, Chonnam National University, 8 Hak-dong, Dong-gu, Gwangju 501-757, Korea. Tel: 82-62-220-4431, Fax: 82-62-225-8387, wmoh@chonnam.ac.kr

• Received: January 24, 2008 • Revised: February 19, 2008 • Accepted: March 4, 2008

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Abstract
REFERENCES

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.
Keywords: Push-out bond strength; Gutta-percha/AH 26 sealer; Resilon/Epiphany sealer; Obturation materials; Irrigation methods

REFERENCES

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Figure 1

Diagram for the push-out bond strength test7).

Figure 2

Comparison of push-out bond strength for same obturation systems.

^*statistically significant (p < 0.05)

Figure 3

Comparison of push-out bond strength for same irrigation methods.

^*statistically significant (p < 0.05).

Figure 4

Failure patterns in Gutta-percha/AH 26 sealer groups.

A. Type I adhesive failure between the AH 26 sealer and dentin (× 800)

B. Type II adhesive failure between the Gutta-percha and AH 26 sealer (× 800)

C. Cohesive failure within the Gutta-percha (× 800)

Abbreviation. G : Gutta-percha, S : AH 26 sealer, D : dentin

Figure 5

Failure patterns in Resilon/Epiphany sealer groups.

A. Type I adhesive failure between the Epiphany sealer and dentin (× 800)

B. Type II adhesive failure between the Resilon and Epiphany sealer (× 800)

C. Cohesive failure within the Resilon (× 800)

D. Cohesive failure within the Resilon representing monoblock concept (× 800)

Abbreviation. R : Resilon, S : Epiphany sealer, D : dentin

Table 1

Group classification

Table 2

Push-out bond strength for each group (Mean ± S.D. (MPa))

Table 3

Failure pattern analysis

Tables & Figures

REFERENCES

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Effect of irrigation methods on the adhesion of Resilon/Epiphany sealer and gutta-percha/AH 26 sealer to intracanal dentin

J Korean Acad Conserv Dent. 2008;33(2):98-106. Published online March 31, 2008

DOI: https://doi.org/10.5395/JKACD.2008.33.2.098

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Figure

Effect of irrigation methods on the adhesion of Resilon/Epiphany sealer and gutta-percha/AH 26 sealer to intracanal dentin

Figure 1 Diagram for the push-out bond strength test7).

Figure 2 Comparison of push-out bond strength for same obturation systems. *statistically significant (p < 0.05)

Figure 3 Comparison of push-out bond strength for same irrigation methods. *statistically significant (p < 0.05).

Figure 4 Failure patterns in Gutta-percha/AH 26 sealer groups. A. Type I adhesive failure between the AH 26 sealer and dentin (× 800) B. Type II adhesive failure between the Gutta-percha and AH 26 sealer (× 800) C. Cohesive failure within the Gutta-percha (× 800) Abbreviation. G : Gutta-percha, S : AH 26 sealer, D : dentin

Figure 5 Failure patterns in Resilon/Epiphany sealer groups. A. Type I adhesive failure between the Epiphany sealer and dentin (× 800) B. Type II adhesive failure between the Resilon and Epiphany sealer (× 800) C. Cohesive failure within the Resilon (× 800) D. Cohesive failure within the Resilon representing monoblock concept (× 800) Abbreviation. R : Resilon, S : Epiphany sealer, D : dentin

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Effect of irrigation methods on the adhesion of Resilon/Epiphany sealer and gutta-percha/AH 26 sealer to intracanal dentin

Table 1

Group classification

Table 2

Push-out bond strength for each group (Mean ± S.D. (MPa))

Table 3

Failure pattern analysis

Table 1 Group classification

Table 2 Push-out bond strength for each group (Mean ± S.D. (MPa))

Table 3 Failure pattern analysis