Shojaee NS, Adl A, Sobhnamayan F, Khademi A, Hamedi M. In Vitro Evaluation of Different Solvents for Retrieval of Mineral Trioxide Aggregate and Calcium-Enriched Mixture.
IRANIAN ENDODONTIC JOURNAL 2016;
11:223-7. [PMID:
27471536 PMCID:
PMC4947849 DOI:
10.7508/iej.2016.03.015]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 05/11/2016] [Accepted: 05/31/2016] [Indexed: 11/30/2022]
Abstract
Introduction:
The purpose of this study was to evaluate the effect of different solvents; carbonic acid (H2CO3), hydrochloric acid (HCl), chlorhexidine (CHX) and sodium hypochlorite (NaOCl) on the surface hardness of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM) cement.
Methods and Materials:
Plexiglass molds were prepared and filled with Angelus MTA or CEM cement and then exposed to 2% carbonic acid, 37% hydrochloric acid, 2% chlorhexidine, 5.25% sodium hypochlorite and normal saline at intervals of 1 and 21 days, respectively (n=4). Surface microhardness of all specimens was analyzed by a universal testing machine and an electron microscope for some selected samples. Data were analyzed using the three-way ANOVA. Subgroup analysis was performed by Student’s t-test, One-way ANOVA and Tukey’s tests. The level of significance was set at 0.05.
Results:
On the first day, all solvents and on 21st day HCl, and H2CO3 were more effective in reducing the microhardness of MTA compared to CEM cement (P<0.05).
Conclusion:
The two experimental cements were differently affected by the solvents at specific time intervals. The solvents were more effective on MTA.
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