| Chronic apical periodontitis | Microvascular proliferation | Total | |
| Yes | No | ||
| Yes | 3 | 6 | 9 |
|
| 8.333% | 16.667% | 25.000% |
| No | 18 | 9 | 27 |
|
| 50.000% | 25.000% | 75.000% |
| Total | 21 | 15 | 36 |
|
| 58.333% | 41.667% |
|