Back to Search
Start Over
Physicochemical properties of methacrylate resin-based root canal sealers.
Physicochemical properties of methacrylate resin-based root canal sealers.
- 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.)
- Subjects :
- Chemical Phenomena
Epoxy Resins standards
Hardness
Methacrylates standards
Radiography, Dental
Rheology
Root Canal Filling Materials radiation effects
Root Canal Filling Materials standards
Surface Properties
Time Factors
Epoxy Resins chemistry
Methacrylates chemistry
Root Canal Filling Materials chemistry
Subjects
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