highly significantp < 0.0001
Maximum% gain in dentin formation was seen in group I (TheraCal), that is, 16.100 ± 2.42, followed by group II (RMGIC), that is, 11.6000 ± 1.42, and group III (Dycal), that is, 9.6000 ± 0.96, and the difference between group I and group II and group I and group III was highly significant ( p < 0.0001).