TY JOUR TI COMPARATIVE EFFECTIVENESS OF TREATMENT OF CHRONIC APICAL PERIODONTITIS ON THE BASIS OF DENSITOMETRIC AND MICROBIOLOGICAL RESEARCH METHODS KW apical periodontitis KW microbial landscape of root canals KW diode laser KW platelet autoplasma KW radiovisiography KW dental computed tomography KW densitometry JO Actual problems in dentistry AU Yusupova, A.F. AU Usmanova, I.N. AU Sorokin, A.P. AU Gerasimova, L.P. PY 2019 IS 15 PB TIRAZH Publishing House