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Bioinorganic Chemistry and Applications
Volume 2018 (2018), Article ID 2784632, 6 pages
https://doi.org/10.1155/2018/2784632
Research Article

Chemical Composition and Porosity Characteristics of Various Calcium Silicate-Based Endodontic Cements

Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea

Correspondence should be addressed to Seok Woo Chang

Received 22 August 2017; Accepted 20 December 2017; Published 1 February 2018

Academic Editor: Claudio Pettinari

Copyright © 2018 Seok Woo Chang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Chemical composition and porosity characteristics of calcium silicate-based endodontic cements are important determinants of their clinical performance. Therefore, the aim of this study was to investigate the chemical composition and porosity characteristics of various calcium silicate-based endodontic cements: MTA-angelus, Bioaggregate, Biodentine, Micromega MTA, Ortho MTA, and ProRoot MTA. The specific surface area, pore volume, and pore diameter were measured by the porosimetry analysis of N2 adsorption/desorption isotherms. Chemical composition and powder analysis by scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) were also carried out on these endodontic cements. Biodentine and MTA-angelus showed the smallest pore volume and pore diameter, respectively. Specific surface area was the largest in MTA-angelus. SEM and EDS analysis showed that Bioaggregate and Biodentine contained homogenous, round and small particles, which did not contain bismuth oxide.