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The occurrence of decayed first permanent molars in 742 (out of 995) 6–7 years old children by caries stages.
| 0 Teeth | 1 Tooth | ≥2 Teeth |
|---|---|---|
| Initial lesion ICDAS1–2 | ||
| 504 (67.92) | 114 (15.36) | 124 (16.71) |
| Moderate lesion ICDAS3–4 | ||
| 656 (88.41) | 47 (6.33) | 39 (5.26) |
| Extensive lesion ICDAS5–6 | ||
| 739 (99.60) | 3 (0.40) | 0 (0.0) |
Percentages are shown in parentheses.
