Table 8 Prevalence rates of first permanent molar at diagnostic cut off-points with DMFT, ICDAS II CAST and the risk ratio
Caries diagnostic tools diagnostic cut off points | Decayed FPMs | Sound FPMs | Risk ratio | ||
|---|---|---|---|---|---|
N (%) | 95% CI | N (%) | 95% CI | ||
DMFT—‘D’ component | 752 (64.4) | 61.6–67.2 | 361 (30.9) | 28.3–33.7 | 2.08 |
ICDAS II (code 1–6) | 1115 (71.5) | 69.2–73.7 | 445 (28.5) | 26.3–30.8 | 2.51 |
CAST (code 3–7) | 1108 (71.0) | 68.7–73.3 | 439 (28.1) | 25.9–30.4 | 2.52 |