TY JOUR TI STUDY THE PREVALENCE OF LESIONS OF HARD TISSUES OF TEETH AND PERIODONTAL DISEASE IN PATIENTS WITH HIV-INFECTION KW caries KW gingivitis KW parodontium KW HIV-infection KW assessment of the condition of periodontal tissues JO Actual problems in dentistry AU Esayan, L.K. AU Azatyan, V.Y. PY 2018 IS 14 PB TIRAZH Publishing House