Cairo Classification (Gingival Recession)
Cairo classification of gingival recession, RT1 to RT3, from the interproximal and buccal attachment loss.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Buccal attachment loss at the recession
- 3 mm
- Interproximal attachment loss
- 2 mm
Result: Cairo RT2: interproximal attachment loss (2 mm) no greater than the buccal loss (3 mm).
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Buccal attachment loss at the recession
- Interproximal attachment loss (0 if none)
How this is calculated
Citation
Cairo F, Nieri M, Cincinelli S, Mervelt J, Pagliaro U. The interproximal clinical attachment level to classify gingival recessions and predict root coverage outcomes. J Clin Periodontol. 2011;38(7):661-666. Read the sources: Cairo 2011 ↗, Front Oral Health 2026 ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.