Table 1.

Group statistics for colony count of S. mutans at two-time intervals

Brackets groups	Colony count of S. mutans
	T1	T2
Control	1403.75 ± 4.20	1326.00 ± 5.05
Ag	1016.25 ± 2.80 a	1006.66 ± 9.08 a
ZnO	1157.50 ± 5.40 a, b	1122.00 ± 8.89 a, b
Ag/ZnO	767.50 ± 9.60 a, b, c	752.00 ± 9.38 a, b, c

T1: test after coating, T2: after 3 months

Data expressed as mean ± S.D%. (n = 12). Data were analyzed using ANOVA followed by Post Hoc pairwise comparisons. Statistically significant at ^aP-value < 0.05 vs control, ^bP-value < 0.05 versus Ag-group, ^CP-value < 0.05 versus ZnO-group