Table 1: Initial and Final Ra(µm) in Groups

Groups Ra
Initial Median [Range, Interquartile Range] Final Median [Range, Interquartile Range] p-value#
CaCO3 Groups
CaCO3 control 0.07 [0.07, 0.04] 0.25 [0.52, 0.16] <0.001
CaCO3 immediate 0.06 [0.02, 0.01] 0.35 [0.45, 0.13] <0.001
CaCO3 after 1h 0.06 [0.02, 0.01] 0.32 [0.81, 0.11] <0.001
SiO2 Groups
SiO2 control 0.08 [0.08, 0.05] 0.26 [0.65, 0.23] <0.001
SiO2 immediate 0.06 [0.02, 0.01] 0.36 [0.61, 0.29] <0.001
SiO2 after 1h 0.06 [0.02, 0.01] 0.34 [0.48, 0.21] <0.001

24 enamel blocks/group#Wilcoxon test