TY JOUR TI EXPERIENCE OF NEW PHARMACOLOGICAL ACTIVE COMPOSITION BASED ON NANOSTRUCTURED FLUORAPATITIS APPLICATION IN TREATMENT OF EARLY MANIFESTATIONS OF TOOTH WEAR KW tooth wear KW remineralizing therapy KW nanostructured fluorine hydroxyapatite JO Actual problems in dentistry AU Legkih, A.V. AU Mandra, Y.V. PY 2017 IS 13 PB TIRAZH Publishing House