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VOLUME 14 , ISSUE 6 ( November-December, 2013 ) > List of Articles

RESEARCH ARTICLE

Evaluation of the Physicochemical Properties and Push- Out Bond Strength of Mta-based Root Canal Cement

Renato de Toledo Leonardo, Gisselle Moraima Chávez-Andrade, Milton Carlos Kuga, Marco Antonio Hungaro Duarte, Katia Cristina Keine, Arnaldo Sant Anna-Junior, Marcus Vinicius Reis Só

Citation Information : de Toledo Leonardo R, Chávez-Andrade GM, Kuga MC, Duarte MA, Keine KC, Anna-Junior AS, Só MV. Evaluation of the Physicochemical Properties and Push- Out Bond Strength of Mta-based Root Canal Cement. J Contemp Dent Pract 2013; 14 (6):1094-1099.

DOI: 10.5005/jp-journals-10024-1457

Published Online: 01-06-2014

Copyright Statement:  Copyright © 2013; The Author(s).


Abstract

Aim

This study investigated the flowability, setting time, pH, calcium release and bond strength of a MTA-based cement (MTA Fillapex®) compared to AH Plus and Sealapex.

Materials and methods

For the flowability test, the ISO 6876:2001 specification was utilized and for the setting time test, the ASTM C266-03 specification was utilized. For the pH and calcium release measurements, 10 samples were prepared for each group and analyzed for several different periods. For the push-out test, dentin disks were distributed into three groups, according to the cement utilized and into three subgroups, according to the root third (n = 10). After obturation, the specimens underwent push-out testing. The data were compared statistically using a significance level of 5%.

Results

The flowability of all materials was found to be similar (p > 0.05). The setting times were different among the groups tested (MTA Fillapex < Sealapex < AH Plus) (p < 0.05). At days 7 and 28, the MTA Fillapex presented the higher pH values (p < 0.05). At 24 hours and at 14 days, the calcium release of the MTA Fillapex was similar to that of Sealapex (p > 0.05). AH Plus presented the lowest pH and calcium release values (p < 0.05). In all root thirds, the adhesion to the dentin of the MTA Fillapex and Sealapex were significantly lower than that of AH Plus (p < 0.05).

Conclusion

MTA Fillapex and Sealapex presented several similar properties and both were found to be different than AH Plus.

Clinical significance

This study evaluated the physicochemical and mechanical properties of new MTA-based root canal cement, in order to use this scaler in root canal fillings. MTA Fillapex showed satisfactory properties for clinical use.

How to cite this article

Chávez-Andrade GM, Kuga MC, Duarte MAH, de Toledo Leonardo R, Keine KC, Anna-Junior AS, Só MVR. Evaluation of the Physicochemical Properties and Push-Out Bond Strength of Mta -based Root Canal Cement. J Contemp Dent Pract 2013;14(6):1094-1099.


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