TY JOUR TI Influence of milk and dairy products on the hardness and roughness of teeth enamel KW tooth enamel KW mechanical properties KW milk KW dairy products JO Russian Journal of Biological Physics and Chemisrty AU Muslov, S.A. AU Arutyunov, S.D. AU Babaitseva, L.A. PY 2020 IS 5 PB Federal State Educational Institution of Higher Education Sevastopol State University