Ingredients and cytotoxicity of MTA and 3 kinds of Portland cements.
10.5395/JKACD.2008.33.4.369
- Author:
Seok Woo CHANG
1
;
Hyun Mi YOO
;
Dong Sung PARK
;
Tae Seok OH
;
Kwang Shik BAE
Author Information
1. Department of Conservative Dentistry, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea.
- Publication Type:Original Article
- Keywords:
White MTA (white mineral trioxide aggregate);
Portland cement;
ICP-AES (Inductively coupled plasma atomic emission spectrometry);
XRF (X-ray fluorescence spectrometry);
XRD (X-ray diffractometry);
Agar diffusion test
- MeSH:
Agar;
Aluminum;
Aluminum Oxide;
Calcium Compounds;
Diffusion;
Glutamates;
Guanine;
Humans;
Iron;
Magnesium;
Manganese;
Oxides;
Plasma;
Silicates;
Spectrometry, X-Ray Emission;
Spectrum Analysis;
Zinc;
Pemetrexed
- From:Journal of Korean Academy of Conservative Dentistry
2008;33(4):369-376
- CountryRepublic of Korea
- Language:English
-
Abstract:
The aim of this study was to compare the compositions and cytotoxicity of white ProRoot MTA (white mineral trioxide aggregate) and 3 kinds of Portland cements. The elements, simple oxides and phase compositions of white MTA (WMTA), gray Portland cement (GPC), white Portland cement (WPC) and fast setting cement (FSC) were measured by inductively coupled plasma atomic emission spectrometry (ICP-AES), X-ray fluorescence spectrometry (XRF) and X-ray diffractometry (XRD). Agar diffusion test was carried out to evaluate the cytotoxicity of WMTA and 3 kinds of Portland cements. The results showed that WMTA and WPC contained far less magnesium (Mg), iron (Fe), manganese (Mn), and zinc (Zn) than GPC and FSC. FSC contained far more aluminum oxide (Al2O3) than WMTA, GPC, and WPC. WMTA, GPC, WPC and FSC were composed of main phases, such as tricalcicium silicate (3CaO.SiO2), dicalcium silicate (2CaO.SiO2), tricalcium aluminate (3CaO.Al2O3), and tetracalcium aluminoferrite (4CaO.Al2O3.Fe2O3). The significance of the differences in cellular response between WMTA, GPC, WPC and FSC was statistically analyzed by Kruskal-Wallis Exact test with Bonferroni's correction. The result showed no statistically significant difference (p > 0.05). WMTA, GPC, WPC and FSC showed similar compositions. However there were notable differences in the content of minor elements, such as aluminum (Al), magnesium, iron, manganese, and zinc. These differences might influence the physical properties of cements.
