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VOLUME 16 , ISSUE 1 ( January, 2015 ) > List of Articles

RESEARCH ARTICLE

Influence of pH Change and Water Storage on the Sealing Ability of Two Resin-based Root-filling Materials

Soraia de Fátima Carvalho Souza, Douglas Nesadal de Souza, Adriana de Fátima Vasconcelos Pereira, Lúcia Pereira Barroso, Antonio Carlos Bombana

Citation Information : de Fátima Carvalho Souza S, de Souza DN, de Fátima Vasconcelos Pereira A, Barroso LP, Bombana AC. Influence of pH Change and Water Storage on the Sealing Ability of Two Resin-based Root-filling Materials. J Contemp Dent Pract 2015; 16 (1):36-41.

DOI: 10.5005/jp-journals-10024-1632

Published Online: 00-01-2015

Copyright Statement:  Copyright © 2015; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

To evaluate the influence of pH change and water storage up to 90 days on the sealing ability of two resin-based rootfilling materials.

Materials and methods

Forty-four human mandibular single-rooted teeth were instrumented and filled with gutta-percha/ AH Plus or Resilon/Epiphany SE (n = 20 per group). Two teeth each were used as positive and negative controls. Specimens were set for 7 days under 100% humidity at 37°C. They were allocated into two subgroups (n = 10) according to whether they were tested immediately or stored for up to 90 days in water before testing. Sealing ability was evaluated by passive dye penetration. Absorbance at 630 nm (in μg/ml) was measured by spectrophotometry. The pH values were obtained in triplicate. Data were submitted to ANOVA by post-hoc Tukey's test (α = 0.05).

Results

Specimens filled with Resilon/Epiphany SE exhibited more leakage than specimens filled with gutta-percha/AH Plus at the immediate time point (p < 0.001). No differences were detected between the groups after storage, or between the materials with pH changes after 30, 60 and 90 days (p > 0.05).

Conclusion

Gutta-percha/AH Plus provided superior sealing at the immediate time point. Water storage and pH changes did not influence the sealing ability of tested materials.

Clinical significance

These results suggest that Resilon/ Epiphany SE sealer offered no apparent advantage over the more conventional gutta-percha/AH Plus sealer technique in terms of sealing ability.

How to cite this article

de Fátima Carvalho Souza S, de Souza DN, de Fátima Vasconcelos Pereira A, Barroso LP, Bombana AC. Influence of pH Change and Water Storage on the Sealing Ability of Two Resin-based Root-filling Materials. J Contemp Dent Pract 2015;16(1):36-41.


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