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Analysis of cell viability, measured by the thiazolyl blue tetrazolium bromide (MTT) assay, of Saos-2 cells grown on Biodentine and ProRoot MTA disks for 24, 48, and 72 h. Data are expressed as mean ± SD. Statistical analysis was performed by the two-way analysis of variance (ANOVA) method coupled with the Bonferroni post-test (*** p < 0.001, ** p < 0.01, * p < 0.05).
