MU Digital Repository
Logo

Comparative evaluation of the calcium release from mineral trioxide aggregate and its mixture with glass ionomer cement in different proportions and time intervals – An in vitro study

*, Surbhi Sawhney and Pai, Dr.A.R.Vivekananda (2015) Comparative evaluation of the calcium release from mineral trioxide aggregate and its mixture with glass ionomer cement in different proportions and time intervals – An in vitro study. The Saudi Dental Journal, xxx. pp. 1-5. ISSN 1013-9052 (In Press)

[img] PDF
Surabhi's article.pdf - Published Version
Restricted to Registered users only

Download (442kB) | Request a copy

Abstract

Background: Addition of glass ionomer cement (GIC) has been suggested to improve the setting time and handling characteristics of mineral trioxide aggregate (MTA). This study evaluated the effect of adding GIC to MTA in terms of calcium release, an issue that has not been previously studied. Materials and methods: The study comprised four groups with five samples each: a control group of MTA alone and experimental groups I (1MTA:1GIC), II (2MTA:1GIC), and III (1MTA:2GIC) based on the mixture of MTA and GIC powders in the respective proportions by volume. Calcium release from the samples was measured by atomic absorption spectrophotometry at 15 min, 6 h, 24 h, and 1 week after setting. The level of statistical significance was set at p< 0.05. Results: Groups I (1MTA:1GIC) and III (1MTA:2GIC) released significantly less calcium than the control group at all time periods, except at 15 min for group I. Group II (2MTA:1GIC) showed no significant difference in calcium release compared to the control at any time period. Group II exhibited greater calcium release than group I or III at all time periods, with significant differences between groups I and II at 1 week and between groups I and III at 24 h and 1 week. There were no statistical differences in calcium release between groups I and III. Adding GIC to improve the setting time and handling properties of the MTA pow- der can be detrimental to the calcium-releasing ability of the resultant mixture, depending on the proportion of GIC added. Adding MTA and GIC at a proportion of 2:1 by volume did not impact calcium release from the mixture. These findings should be verified through further clinical studies. 2256 ª 2015 Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access

Item Type: Article
Uncontrolled Keywords: Atomic absorption spectophotometer; Calcium ion; Glass ionomer cement; Mineral trioxide aggregate
Subjects: Dentistry > MCODS Mangalore > Conservative Dentistry
Depositing User: KMCMLR User
Date Deposited: 12 Aug 2015 06:45
Last Modified: 12 Aug 2015 06:45
URI: http://eprints.manipal.edu/id/eprint/143800

Actions (login required)

View Item View Item