Aim. To study the medical and economic efficiency of the program for the prevention of dental caries using UltraSeal XT among schoolchildren of Kazan. Methods. In 2013, 200 schoolchildren from Kazan seen in the Republican Dental Clinic of the Ministry of Health of the Republic of Tatarstan (100 boys and girls aged 78) were selected. All patients were divided into two groups with similar distributions of sex and age: the test (main) group and control group. In the test group Sealants, the fissures of the first permanent molars were sealed with a composite fluorine-containing sealant according to the manufacturer's instructions. The control group was formed from children without dental sealants. The oral health assessment of children is reflected in the Examination Cards. Average indices of the severity of dental caries were determined (the number of decayed, filled and missing primary/permanent teeth dmft/DMFT). Re-examination of children was carried out in 2016 with the determination of the same indicators. The economic analysis was carried out using the method of mathematical modeling. Statistical processing was performed in Microsoft Office Excel 2017. Results. The use of sealants at the age of 78 years provided a lower level of caries severity in deciduous teeth (4.093.0; p 0.01). There was no statistically significant difference between the DMFT score of permanent teeth in children aged 78 years in the test group and the dmft score of deciduous teeth of children in the control group (p 0.05). The DMFT score in the permanent teeth of children in the test group of this age cohort (78 years old) was 0.660.95. The mean severity of dental caries DMFT index of 12-year-olds children with permanent dentition in the test group was 0.771.07, which is 1.52 more healthy teeth than in the control group DMFT score 2.291.59 (t=4.01; p 0.01). The medical and economic efficiency of the fluoride prevention of dental caries in 12-year-olds schoolchildren through the use of a composite fluorine-containing sealant is expressed in the eradication of caries (less than 1 affected tooth according to the World Health Organization classification) and amounts to 437.38 rubles of notional saved costs per child for sealing versus dental treatment. Conclusion. The use of a fluoride composite material reduces the severity of dental caries in children and the notional saved costs for sealing teeth.

Aim. To conduct a clinical and economic analysis of the effectiveness of the program fissure sealing of first permanent molars with fluorine-containing sealants among schoolchildren of 78 years old in six cities of the Republic of Tatarstan. Methods. Between 2007 and 2011, dentists of six cities of the Republic of Tatarstan performed fissure sealing of permanent first molars using a fluorine-containing sealant in 24,394 schoolchildren aged 78 years according to the manufacturer's instruction. A clinical assessment of fluorine-containing sealant retention during tooth eruption was carried out annually, the results were submitted to the organizational and methodological office of the Republican Dental Clinic. The analysis of the complex of signs that have a normal distribution and characterize four degrees of sealant retention on the occlusal surfaces of teeth in children from several cities was carried out by using one-way ANOVA (analysis of variance) with the calculation of a p-value and F-test (according to Ronald Fischer). Statistical data processing was performed using the Microsoft Office Excel 2017 software. The economic analysis was performed by using mathematical modelling. Results. The use of sealants at the age of 78 years ensured the complete safety of the sealant in 80% of children; the development of dental caries in 1.7%; complete and partial loss 14.3%; disturbance of fit without the development of caries in 4.1% of cases [р=0.0095 (0.01); f-test 3.09839]. Clinical and economic analysis using a mathematical hypothesis in sealing with a fluorine-containing composite sealant determined the preservation of the conditionally spent funds for the treatment of 80% of healthy teeth for 4 years of the project in the amount of 6,001,177 rubles. Notional saved costs for the treatment of one tooth with a sealant amounted to 23.7 rubles. Conclusion. Implementation of the program fissure sealing of first permanent molars with fluorine-containing sealants among schoolchildren of 78 years old allows a total of 98.3% of healthy teeth to be preserved and notionally saved costs of sealing fissures to be reduced.