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Physicochemical properties of methacrylate resin-based root canal sealers.

Physicochemical properties of methacrylate resin-based root canal sealers.

Authors :
Marin-Bauza GA
Rached-Junior FJ
Souza-Gabriel AE
Sousa-Neto MD
Miranda CE
Silva-Sousa YT
Source :
Journal of endodontics [J Endod] 2010 Sep; Vol. 36 (9), pp. 1531-6. Date of Electronic Publication: 2010 Jul 04.
Publication Year :
2010

Abstract

Introduction: This study assessed in vitro the physicochemical properties of 2 methacrylate resin-based sealers (Epiphany SE and Hybrid Root SEAL), comparing the results with a well-established epoxy resin-based sealer (AH Plus).<br />Methods: Five samples of each material were used for each test (setting time, flow, radiopacity, dimensional change after setting, and solubility) according to American National Standards Institute/American Dental Association (ANSI/ADA) Specification 57. The samples were assigned to 3 groups: I, AH Plus; II, Epiphany SE; and III, Hybrid Root SEAL. The distilled and deionized water used at the solubility test was submitted to atomic absorption spectrometry to observe the presence of Ca2+, K+, Ni2+, and Zn2+ ions. In addition, the surface morphology of the specimens was analyzed by means of scanning electron microscopy (SEM). Statistical analysis was performed by using one-way analysis of variance and Tukey-Kramer test (P < .05).<br />Results: Flow, radiopacity, and solubility of all sealers were in accordance with ANSI/ADA. The setting time of Hybrid Root SEAL did not agree with ANSI/ADA requirements. The dimensional change of all sealers was greater than the values considered acceptable by ANSI/ADA. The spectrometry analysis showed significant Ca(2+) ions release for AH Plus. In SEM analysis, Hybrid Root SEAL presented spherical monomers with inferior size than AH Plus and Epiphany SE.<br />Conclusions: It might be concluded that physicochemical properties of the tested sealers conformed to ANSI/ADA (2000) standardization, except for the setting time of Hybrid Root SEAL and the dimensional change of all sealers, which did not fulfill the ANSI/ADA requirements.<br /> (Copyright 2010 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.)

Details

Language :
English
ISSN :
1878-3554
Volume :
36
Issue :
9
Database :
MEDLINE
Journal :
Journal of endodontics
Publication Type :
Academic Journal
Accession number :
20728722
Full Text :
https://doi.org/10.1016/j.joen.2010.05.002