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Inhibition diameters of the 50-g extracts of Rhus vulgaris and Lantana trifolia against Streptococcus mutans on blood agar at 48 h incubation.
| Extract/control | Measured diameters of inhibition zones (mm) | |||
|---|---|---|---|---|
| 1st | 2nd | 3rd | Mean diameter (±SD) | |
| Rhus vulgaris | 24.0 | 25.0 | 24.0 | 24.33 ± 0.58 |
| Lantana trifolia | 14.0 | 14.5 | 14.0 | 14.17 ± 0.29 |
| Benzyl penicillin | 30.5 | 30.5 | 31.0 | 30.67 ± 0.29 |
| De-ionized water | 0.0 | 0.0 | 0.0 | 0.0 |
