Table 1 Distribution of children into four subgroups according to the stage of their dentition and the clinical findings.
Dentition | Nr of children | Age in years range, mean (s.d.) | Nr of caries-free children | Nr of children with caries | dmfs* mean (s.d.) | DMFS* mean (s.d.) | Plaque Index** Mean (s.d.) |
|---|---|---|---|---|---|---|---|
Deciduous | 13 | 3-6, 4.4 (0.8) | 6 | 5 | 3.8 (4.9) | 0 | 1.0 (0.5) |
Early Mixed | 29 | 5-11, 7.8 (1.6) | 10 | 9 | 7.9 (10.8) | 1.1 (2.7) | 0.9 (0.5) |
Late Mixed | 21 | 8-12, 10.1 (1.2) | 8 | 6 | 6.1 (13.0) | 1.6 (3.1) | 0.9 (0.4) |
Permanent | 11 | 11-18, 13.9 (2.4) | 3 | 2 | 0 | 2.6 (2.9) | 0.7 (0.3) |