TY JOUR TI QUALITY OF LIFE IN PATIENTS WITH CHRONIC GENERALIZED SEVERE PERIODONTAL DISEASE AND DEFECTS OF DENTITION KW periodontal disease KW quality of life JO Actual problems in dentistry AU Oskolkova, D.A. AU Kosilova, A.S. AU Pleshakova, T.O. AU Tokmakova, S.I. AU Lunizyna, Y.V. PY 2013 IS 9 PB TIRAZH Publishing House