TY JOUR TI EFFECT OF CHRONIC GENERALIZED PERIODONTITIS OF MODERATE SEVERITY PATIENTS QUALITY OF LIFE KW chronic generalized periodontitis KW quality of life KW questionnaire oHip-49-Ru JO Actual problems in dentistry AU Sabitova, R.I. AU Gulyaeva, O.A. AU Bulyakov, R.T. PY 2013 IS 9 PB TIRAZH Publishing House