Table 1 Diagnosis and classification criteria of periodontitis from the Center for Disease Control and Prevention in partnership with the American Academy of Periodontology (CDC-AAP)
| Â | Definition |
|---|---|
Normal | No evidence of mild, moderate, or severe periodontitis |
Mild periodontitis | It was defined by the presence of periodontal pockets in ≥ 2 interproximal sites with a clinical attachment level of ≥ 3 mm, in ≥ 2 interproximal sites with a probing depth (PD) ≥ 4 mm (for different teeth), or in one site with a PD ≥ 5 mm |
Moderate periodontitis | Clinical attachment levels (CAL) were only measured when a periodontal pocket ≥ 3 mm was defined as the algebraic sum of PD and gingival recession (GR). It was referred as ≥ 2 interproximal sites with ≥ 4 mm CAL (not on the same tooth) or ≥ 2 interproximal sites with PD ≥ 5 mm, also not on the same tooth |
Severe periodontitis | It was referred as having ≥ 2 interproximal sites with CAL ≥ 6 mm (not on the same tooth) and ≥ 1 interproximal site(s) with PD ≥ 5 mm |