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Table 1 Staging of periodontitis

From: Periodontitis as a risk for oral cancer: a case–control study

 

Periodontitis

Stage I

Stage II

Stage III

Stage IV

Severity

Interdental CAL (at the site of greatest loss)

1–2 mm

3–4 mm

 ≥ 5 mm

 ≥ 5 mm

Tooth loss (due to periodontitis)

No tooth loss

 ≤ 4 teeth

 ≥ 5 teeth

  1. Criteria to determine the severity of periodontitis according to the World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions in 2017