From: Can locally applied risedronate be an effective agent when combined with xenografts? An animal study
Staining intensity | Staining extent | ||
---|---|---|---|
0 | No staining | 0 | No staining |
1 | Slight staining | 1 | % 0–25 |
2 | Mild staining | 2 | % 26–50 |
3 | Severe staining | 3 | % 51–75 |
4 | % 76–100 | ||
h = staining intensity X staining extent |