Research Article

Cytotoxicity and Antibacterial Activity of Mineral Trioxide Aggregate Cement with Radiopacity Introduced by ZrO2

Figure 5

The cytotoxicity effect of tested cements and their eluates after direct and indirect contact on a L-929 cell culture, in vitro after incubation for (a) 24 h (b) 48 h, and (c) 72h Cell viability was determined with an MTT colorimetric assay. The results of cytotoxic tests are presented as mean values of optical density (OD) at 550–630 nm ± standard deviation (SD) from three separate experiments are shown; as compared with control cells.
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