Table 3. Bacterial Inhibition of SPNC against S. mutans and S. sorbinus.
| Zone of inhibition mm (SD) | ||
|---|---|---|
| S. mutans | S. sorbinus | |
| Control | 0 (0) | 0 (0) | 
| 1.0% | 0 (0) | 0 (0) | 
| 3.0% | 0 (0) | 1.9 (0.5)*,a | 
| 5.0% | 2.2 (0.4)*,a | 4.2 (0.3)*,b | 
Statistical differences of the size of inhibition halos within the groups are marked with * and different letter indicates a statistical difference between two bacteria (P < .05).