Skip to main content

Table 1 Group statistics for colony count of S. mutans at two-time intervals

From: The antibacterial effect of silver, zinc-oxide and combination of silver/ zinc oxide nanoparticles coating of orthodontic brackets (an in vitro study)

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
  1. T1: test after coating, T2: after 3 months
  2. 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