Table 5.
The mean and SD of the diameter of growth inhibition zone due to the effect of ampicillin on different microorganisms.
| Concentration (μg/mL) |
Microorganism | ||||
|---|---|---|---|---|---|
| S. mutans | S. sanguinis | S. salivarius | S. sobrinus | E. faecalis | |
| 16 | >30 ± 0 | >30 ± 0 | >30 ± 0 | >30 ± 0 | 18 ± 0 |
| 8 | >30 ± 0 | >30 ± 0 | 26.5 ± 0.61 | 28 ± 0 | 16 ± 0 |
| 4 | 30 ± 0 | 30.5 ± 0.41 | 22.5 ± 0.41 | 24.5 ± 0.41 | 14 ± 0 |
| 2 | 24.5 ± 0.41 | 25 ± 0 | 18 ± 0 | 16 ± 0 | 11.5 ± 0.41 |
| 1 | 18 ± 0 | 20 ± 0 | 15 ± 0 | 12 ± 0 | N.S. |
| 0.5 | 14.5 ± 0.41 | 16 ± 0 | N.S. | N.S. | N.S. |
∗N.S.: not seen.