Table 3.
Antibacterial Activity of Copaiba oil gel and Chlorhexidine against the tested strains, showing the Means of inhibition haloes (in mm) at 12 hours in BHI medium.
| Bacteria | Treatments | Means (mm) | p-Value |
|---|---|---|---|
| S. constellatus | Chlorhexidine | 20.17 a | 0.0039 |
| Copaiba oil gel | 16.57 b | ||
| S. mitis ATCC 903 | Chlorhexidine | 23.00 a | 0.0004 |
| Copaiba oil gel | 20.43 b | ||
| S. mitis D4 | Chlorhexidine | 21.00 a | 0.0001 |
| Copaiba oil gel | 13.86 b | ||
| S. mitis M3 | Chlorhexidine | 22.00 a | 0.0001 |
| Copaiba oil gel | 12.86 b | ||
| S. mitis Fe4 | Chlorhexidine | 23.14 a | 0.3639 |
| Copaiba oil gel | 22.00 a | ||
| S. oralis ATCC 10557 | Chlorhexidine | 20.21 a | 0.0001 |
| Copaiba oil gel | 13.57 b | ||
| S. salivarius | Chlorhexidine | 19.71 a | 0.009 |
| Copaiba oil gel | 14.28 b | ||
| S. sanguinis ATCC 15300 | Chlorhexidine | 20.86 a | 0.0001 |
| Copaiba oil gel | 15.86 b | ||
| S. mutans ATCC 25175 | Chlorhexidine | 20.18 a | 0.0001 |
| Copaiba oil gel | 14.85 b |
Mm = Millimeters. Means followed by different letters differ among them at the level of significance of 5%.