Literature DB >> 19084134

The effect of a physiologic solution pH on properties of white mineral trioxide aggregate.

Ming-You Shie1, Tsui-Hsien Huang, Chia-Tze Kao, Chiao-Hui Huang, Shinn-Jyh Ding.   

Abstract

The purpose of this study was to investigate the effect of two solutions differing by pH (6.4 and 4.0) and the use of a setting accelerator (15% Na(2)HPO(4) solution) on the properties of white-colored mineral trioxide aggregate (WMTA). These studies indicated that pH 4.0 had a deleterious effect on the morphology of WMTA mixed with water, however, not for WMTA mixed with Na(2)HPO(4). When immersed in a pH 4.0 solution for 7 days, WMTA mixed with water or Na(2)HPO(4) achieved a diametral tensile strength of 7.9 and 9.0 MPa, respectively, which was significantly lower (p < 0.05) than those obtained at pH 6.4 (11.2 and 12.0 MPa) but significantly higher (p < 0.05) than day 0 samples (4.4 and 4.8 MPa). Mixing WMTA with the accelerator did not significantly affect the microstructure, solubility, or strength in an acidic environment.

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Year:  2008        PMID： 19084134     DOI： 10.1016/j.joen.2008.09.015

Source DB:  PubMed          Journal:  J Endod        ISSN： 0099-2399            Impact factor:   4.171


  22 in total

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