Table 2: The pH of S. mutans cultures that were incubated with various concentrations of KA.

Conc. ( g/mL)pH (before incubation)pH (after incubation)

Control7.20 ± 0.055.03 ± 0.05
17.20 ± 0.055.00 ± 0.10
27.13 ± 0.055.00 ± 0.00
37.20 ± 0.055.13 ± 0.11
47.00 ± 0.006.97 ± 0.05*
0.1% NaF7.20 ± 0.007.00 ± 0.00*

Each pH value is represented as mean ± standard deviation. * when compared with the control group after incubation.