[Table/Fig-2]:
Effect of various concentrations of aqueous neem extracts on Streptococcus mutans
| Concentration | Zone of inhibition (mm) | Mean ±SD | |||
| Z1 | Z2 | Z3 | Z4 | ||
| 5% | 0 | 0 | 0 | 0 | 0 |
| 10% | 1.1 | 0.9 | 1.3 | 1.1 | 1.1 ± 0.16 |
| 50% | 3.9 | 4.1 | 4.1 | 4 | 4.0 ± 0.09 |
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