Table S2.
Periodontitis severity based on probing depth (PD) and clinical attachment loss (CAL)
| Periodontitis severity | PD (mm) | CAL (mm) |
|---|---|---|
| Mild | >3 to <5 | 1–2 |
| Moderate | ≥5 to <7 | 3 to 4 |
| Severe | ≥7 | ≥5 |
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