Loe-Silness Gingival Index
Loe-Silness Gingival Index (Loe & Silness 1963): index of gingival inflammation.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Surfaces scored 0
- 20
- Surfaces scored 1
- 40
- Surfaces scored 2
- 30
- Surfaces scored 3
- 10
Result: Gingival Index 1.3 — moderate gingivitis.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Per surface
- 0 normal, 1 mild (no bleeding on probing), 2 moderate (bleeds on probing), 3 severe (spontaneous bleeding). Index = mean of surface scores.
- Bands
- 0 healthy, 0.1-1.0 mild, 1.1-2.0 moderate, 2.1-3.0 severe gingivitis.
What you enter
- Surfaces scored 0 (normal)
- Surfaces scored 1 (mild)
- Surfaces scored 2 (moderate)
- Surfaces scored 3 (severe)
How this is calculated
Loe H, Silness J. Periodontal disease in pregnancy. I. Prevalence and severity. Acta Odontol Scand. 1963;21:533-551. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.