TY JOUR TI ASSESSMENT OF THE DENTIFRICE INFLUENCE ON ENAMEL MATURE IN THE ASPECT OF AGE AND CARIES ACTIVITY IN 6–7, 12, 15 YEAR OLD SCHOOLCHILDREN KW schoolchildren KW prevention KW toothpaste KW electrometry KW enamel resistance JO Actual problems in dentistry AU Nasretdinova, N.Y. AU Mandra, Y.V. AU Bazarnyy, V.V. AU Kotikova, A.Y. AU Dimitrova, Y.V. AU Gegalina, N.M. AU Sorokoumova, D.V. AU Vlasova, M.I. AU Boldyrev, Y.A. PY 2021 IS 17 PB TIRAZH Publishing House