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Shakavets N.V.
The results of three-year dental caries prevention in early childhood
Educational Establishment «Belarusian State Medical University», Minsk, Republic of Belarus

Vestnik VGMU. 2016;15(2):93-101.

Objectives. To comparatively estimate the effectiveness of various methods of early childhood caries (ECC) prevention.
Material and methods. All in all 642 children at the age of 6-36 months were examined. The d1-4mft and d1-4mfs indices, the indices of oral hygiene, the level of CFU of SM in the saliva were determined. All children were randomized into 7 groups. In the 1st group mothers’ motivating interview and dental examination of the infants 2 times a year (n=129) were conducted. In the 2nd group fluoride varnish applications (5% NaF) 2 times a year (n=123) were made and in the 3rd group – 4 times a year (n=124). The control, the 7th group was made up of 163 children. The children with SM in the number of CFU>103 were randomized into two groups – the 4th group (n=52) with the applications of «Cervitec» varnish 4 times a year and the 5th group (n=51) with the applications of «Cervitec» varnish 2 times a year and fluoride varnish applications (5% NaF) 2 times a year. The children with SM CFU>103 out of the 7th group made up the group 8 – the comparison group (n=31). All the data were  statistically analyzed with the use of non-parametric methods (Wilcoxon test, Mann-Whitney U test, Spearman correlation analysis).  
Results. The increasing of dental caries intensity during three years was 1,82 teeth in the group 1; 0,95 in the group 2; 0,54 in the group 3; in the group 7 – 2,50 (р1-7=0,18; р2-7<0,001; р3-7<0,001). There were no significant statistical differences between the group 2 and the group 3 (р=0,21). The increasing of dental caries intensity in the group 4 was 2,04, in the group 5 - 1,35 and in the group 8 - 3,30 (р4-8=0,12; р5-8=0,001).
Conclusions. The applications of fluoride varnish 2 times a year are clinically and economically effective for ECC prevention. The dental caries reduction is 62%. The combined preventive strategy of using high concentrated fluorides and chlorhexidine applications is effective for ECC prevention in children with high caries risk. It allows to achieve 59,1% of the dental caries reduction in this group.
Key words: dental caries, infants, fluoride varnish, reduction.


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