Figure 2.
Forest plot of studies evaluating cell viability following exposure to undiluted MTA at different time intervals (24, 48, and 72 hours, as well as 5 and 7 days). The meta-analysis demonstrated a statistically significant reduction in cell viability at 48 hours compared with the control group (P=0.01), indicating a cytotoxic effect at this time point. In contrast, no significant differences in cell viability were observed at 24 and 72 hours, or after 5 and 7 days of exposure (95% CI).
