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Pathogens presence in periodontitis (divided for disease severity) and healthy controls.
| Severe periodontitis | Moderate periodontitis | Mild periodontitis | Controls | Total | |
|---|---|---|---|---|---|
| Bacteria (+) | 20 (100%) | 39 (100%) | 40 (100%) | 50 (52%) | 149 |
| Bacteria (-) | 0 (0%) | 0 (0%)0 | 0 (0%) | 46 (48%) | 46 |
| Total | 20 (100%) | 39 (100%) | 40 (100%) | 96 (100%) | 195 |
