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Table 1 Distribution of children into four subgroups according to the stage of their dentition and the clinical findings.

From: Exploring the oral microbiota of children at various developmental stages of their dentition in the relation to their oral health

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)
  1. * - DMFS/dmfs - number of decayed, missing and filled surfaces in deciduous (dmfs) or permanent (DMFS) dentition.
  2. ** - Plaque Index - mean plaque score, which is a measure of plaque amount.