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Colour combinations for severity score determination
| Interdental CAL at site of greatest loss (mm) | Radiographic bone loss (%) | Tooth loss | SEVERITY |
|---|---|---|---|
| ≥5 | 15–33% | 0 | 2 |
| ≥5 | 15–33% | ≤4 | 2–3 |
| ≥5 | 15–33% | ≥5 | 2–3 |
| ≥5 | 33–50% | 0 | 2–3 |
| ≥5 | 33–50% | ≤4 | 3 |
| ≥5 | 33–50% | ≥5 | 3 |
| ≥8 | 33–50% | 0 | 2–3 |
| ≥8 | 33–50% | ≤4 | 3 |
| ≥8 | 33–50% | ≥5 | 4 |
| ≥8 | >50% | 0 | 3–4 |
| ≥8 | >50% | ≤4 | 4 |
| ≥8 | >50% | ≥5 | 4 |
White: SEVERITY 2; Pink: SEVERITY 3; Red: SEVERITY 4; CAL, clinical attachment loss.
