TY JOUR TI THE INFLUENCE OF PATIENT AGE ON THE RELATIONSHIP BETWEEN THE SEVERITY OF PERIODONTITIS AND BLOOD PRESSURE KW periodontal disease KW periodontitis KW arterial hypertension KW blood pressure KW chronic inflammation KW systemic inflammation JO Actual problems in dentistry AU Ushanova, A.M. AU Vasiliev, Y.L. AU Trushina, O.Y. AU Heigetyan, A.V. AU Kanukoeva, E.Y. AU Vinogradova, E.I. AU Fomin, V.V. PY 2026 IS 2021 PB TIRAZH Publishing House