| Group | Healthy Gr. | CHD with Ant. | CHD without Ant. | |||
| N | % | N | % | N | % | |
| Total | 30 | 100.0 | 30 | 100.0 | 30 | 100.0 |
| Mitis | 19 | 63.3 | 21 | 70.0 | 22 | 73.3 |
| Oralis | 18 | 60.0 | 20 | 66.7 | 21 | 70.0 |
| Cristatus | 1 | 3.3 | 1 | 3.3 | 1 | 3.3 |
| Pneumonie | 3 | 10.0 | 3 | 10.0 | 4 | 13.3 |
| Anginosus | 2 | 6.7 | 2 | 6.7 | 1 | 3.3 |
| Constelatus | 2 | 6.7 | - | - | 1 | 3.3 |
| Intermedius | - | - | 1 | 3.3 | - | - |
| Salivarius | 5 | 16.7 | 3 | 10.0 | 1 | 3.3 |
| Thermophilus | 2 | 6.7 | 2 | 6.7 | - | - |
| Vestibularis | 3 | 10.0 | 2 | 6.7 | - | - |
| Mutans | 1 | 3.3 | 1 | 3.3 | 1 | 3.3 |
| Sobrinus | 1 | 3.3 | 1 | 3.3 | - | - |
| Sanguinis | 5 | 16.7 | 5 | 16.7 | 5 | 16.7 |
| Parasanguinis | 1 | 3.3 | - | - | 1 | 3.3 |
| Gordoni | 1 | 3.3 | 2 | 6.7 | 1 | 3.3 |
| Galolyticus | 1 | 3.3 | 1 | 3.3 | - | - |
| Alactolyticus | - | - | 2 | 6.7 | 1 | 3.3 |