TY CONF TI VIOLATION OF MICROCIRCULATION IN PERIODONTAL TISSUES WITH CHRONIC CATARRHAL GINGIVITIS AND THEIR ROLE IN THE PATHOGENESIS OF DISEASE KW chronic catarrhal gingivitis KW microcirculation KW Doppler ultrasound JO Materials of the International Congress "Dentistry of the Great Urals". December 4-6, 2019 AU Dzyuba, E.V. AU Nagaeva, M.O. AU Moroshnichenko, V.V. PY 2024 PB TIRAZH Publishing House