Table 3.

Increase in the number of decayed and filled teeth after 2 years from baseline, according to the groups

Teeth status	Group*	Mean**	Standard Deviation	Median	Minimum	Maximum
Decayed Teeth	HR-S	0.09ab	0.32	0	0	2
	LR-S	0.02c	0.12	0	0	1
	HR-NS	0.14a	0.35	0	0	1
	LR-NS	0.04bc	0.2	0	0	1
Filled Teeth	HR-S	0.24a	0.32	0	0	2
	LR-S	0.00b	0	0	0	0
	HR-NS	0.28a	0.7	0	0	3
	LR-NS	0.12b	0.2	0	0	1
Decayed+Filled Teeth	HR-S	0.33a	0.69	0	0	3
	LR-S	0.02b	0.12	0	0	1
	HR-NS	0.42a	0.74	0	0	3
	LR-NS	0.16b	0.64	0	0	4

^*HR: high caries risk; LR: low caries risk; S: sealed permanent first molars; NS: not sealed permanent first molars

^**Means followed by distinct letters are statistically different by the Kruskal-Wallis and Dunn tests (p<0.05)