DMFT Caries Index
DMFT index of dental caries experience (Klein 1938; WHO severity levels): DMFT = D (decayed) + M (missing due to caries) + F (filled) permanent teeth, range 0-32.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- D - decayed permanent teeth
- 3
- M - permanent teeth missing due to caries
- 1
- F - filled permanent teeth
- 2
Result: DMFT 6 — high caries experience (population severity level).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Levels
- population mean DMFT: 0-1.1 very low, 1.2-2.6 low, 2.7-4.4 moderate, 4.5-6.5 high, >= 6.6 very high.
What you enter
- D - decayed permanent teeth (0-32)
- M - permanent teeth missing due to caries (0-32)
- F - filled permanent teeth (0-32)
How this is calculated
- Formula
- DMFT = D (decayed) + M (missing due to caries) + F (filled) permanent teeth (0-32).
Klein H, Palmer CE, Knutson JW. Studies on dental caries. I. Dental status and dental needs of elementary school children. Public Health Rep. 1938;53:751-765. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.