| Infection | Grade I | Grade II | Grade IIIA | Grade IIIB | Total |
| No infection (Excellent) | 12 | 7 | 2 | ----- | 21 |
| Superficial (Good) | 5 | 9 | 9 | 4 | 27 |
| Controlled deep (Fair) | ---- | 1 | 2 | 2 | 5 |
| Uncontrolled deep (Poor) | ---- | ----- | 1 | 1 | 2 |