TY JOUR TI RUSSELL`S PERIODONTAL INDEX IN GERONTODENTISTRY (SPECIFICATIONS OF INTERPRETATION) KW gerontoperiodontology KW periodontitis KW Russell index KW inflammatory-destructive processes KW immunomodulation KW Polyoxidonium KW cranial electrotherapy stimulation JO Actual problems in dentistry AU Mihalchenko, V.F. AU Popova, A.N. AU Firsova, I.V. AU Yakovlev, A.T. AU Alekhanova, I.F. AU Vasenev, E.E. AU Makedonova, Y.A. AU Krajnov, S.V. PY 2018 IS 14 PB TIRAZH Publishing House