TABLE 1. Antimicrobial activity of MTA-Angelus (MTA-A), MTA- Dentsply (MTA-D), Calcium hydroxide (Ca (OH)2) and Portland cement.
Bacterial strains | Inhibition zones (diameter in mm) | |||
MTA-A | MTA-D | Ca(OH)2 * | Portland cement | |
Pseudomonas aeruginosa | 21 (± 0.2887) | 19 (± 0.5774) | 22 (± 0.5774) | 17 (± 0.2887) |
Escherichia coli | 0 | 0 | 0 | 0 |
Enterococcus faecalis | 0 | 0 | 0 | 0 |
Bacteroides fragilis | 0 | 0 | 13 (± 0.2887) | 0 |
Ca(OH)2 showed larger inhibition zones against P aeruginosa than B. fragilis (p<0.01) by Tukey test.