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Scoring criteria of periodontal disease based on WHO criteria.
| Score | Interpretation |
|---|---|
| 0 | Healthy gums with absence of periodontal disease |
| 1 | Bleeding on probing |
| 2 | Calculus felt during probing |
| 3 | Presence of periodontal pocket with depth between 3.5 mm and 5.5 mm |
| 4 | Presence of periodontal pocket with depth 6 mm or more |
