Table 2 Case definitions for denoting periodontitis in epidemiological studies
From: Detection and diagnosis of periodontal conditions amenable to prevention
Authors/context | Case severity | Case definition |
|---|---|---|
Tonetti & Claffey, 2005. Consensus report of the 5th European Workshop on Periodontology [28] | Mild/incipient cases | Presence of proximal attachment loss of ≥ 3 mm in ≥ 2 non-adjacent teeth |
|  | Severe cases | Presence of proximal attachment loss of ≥ 5 mm in ≥ 30% of teeth present |
Page & Eke, 2007. US Centre for Diseases Control and Prevention (CDC) and American Academy of Periodontology (AAP) [27, 29] | Mild periodontitis | Two or more interproximal sites with attachment loss ≥ 3 mm and two or more interproximal sites with probing depths ≥ 4 mm, not on the same tooth, or one site with probing depth ≥ 5 mm |
|  | Moderate periodontitis | Two or more interproximal sites with attachment loss ≥ 4 mm, not on the same tooth, or two or more interproximal sites with probing depths ≥ 5 mm, not on the same tooth |
|  | Severe periodontitis | Two or more interproximal sites with attachment loss ≥ 6 mm, not on the same tooth, and one or more interproximal sites with probing depth ≥ 5 mm |