Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2018 Jan-Mar;11(1):51-56.

Physiochemical Properties of Experimental Nano-hybrid MTA

Vagharedin Akhavan Zanjani  1 , Kasra Tabari  1 , Seyedeh Mahsa Sheikh-Al-Eslamian  2 , Ahmad Najafi Abrandabadi  1
Affiliations

Physiochemical Properties of Experimental Nano-hybrid MTA

Vagharedin Akhavan Zanjani et al. J Med Life. 2018 Jan-Mar.

Abstract

Introduction:The development of new pulp capping agents has paved the way towards the preservation of pulp vitality, which is an important goal in restorative dentistry. This study sought to assess the calcium ion release, pH and setting of mineral trioxide aggregate (MTA) Angelus, an experimental formulation of nano-hybrid MTA containing nano-SiO2, nano-Al2O3 and nano-TiO2 and MTA Angelus plus nano-oxides. Methods:In this experimental study, five specimens from each material were placed in polypropylene tubes and immersed in a flask containing deionized distilled water. The amount of calcium ions released into the solution from each material was measured at 15 minutes, one hour and 24 hours using atomic absorption spectroscopy. The pH of the solutions was measured using a pH meter at the respective time points. Setting time was also assessed using a Gilmore needle. Data were analyzed using the repeated measures ANOVA. Results:The amount of released calcium ions was not significantly different among the groups (P=0.060). All materials were alkaline and the pH at 24 hours was significantly higher than the other two time points in all groups (P<0.001). The experimental group had the shortest and MTA Angelus had the longest setting time. All materials were alkaline and capable of releasing calcium. Addition of nanoparticles to MTA Angelus significantly decreased the setting time but had no effect on the release of calcium ions or pH. Abbreviations: mineral trioxide aggregate (MTA), vital pulp therapy (VPT).

Keywords: Acidity; Calcium; Ions; Mineral trioxide aggregate; Nanoparticles.

PubMed Disclaimer

References

    1. Fuks AB. Vital pulp therapy with new materials for primary teeth: new directions and treatment perspectives. Journal of endodontics. 2008;34(7):S18–S24. - PubMed
    1. Asgary S, Ahmadyar M. Vital pulp therapy using calcium-enriched mixture: An evidence-based review. Journal of Conservative Dentistry. 2013;16(2):92–92. - PMC - PubMed
    1. Khademolhosseini M, Barounian M, Eskandari A, Aminzare M, Zahedi A, Ghahremani D. Development of new Al2O3/TiO2 reinforced glass-ionomer cements (GICs) nano-composites. J Basic Appl Sci Res. 2012;2:7526–7529.
    1. Corrêa JM, Mori M, Sanches HL, Cruz ADd, Poiate E, Poiate IAVP. Silver nanoparticles in dental biomaterials. International journal of biomaterials. 2015;2015 - PMC - PubMed
    1. Li Z, Wang H, He S, Lu Y, Wang M. Investigations on the preparation and mechanical properties of the nano-alumina reinforced cement composite. Materials Letters. 2006;60(3):356–359.

LinkOut - more resources