TY JOUR TI DEVELOPMENT OF A NON-INVASIVE SPLINT AS A CURATIVE AND PREVENTIVE DEVICEUSED IN TREATMENT OF PATIENTS WITH CHRONIC GENERALIZED PERIODONTITIS KW JO Actual problems in dentistry AU Astashina, N.B. AU Kazakov, S.V. AU Rogozhnikova, E.P. AU Goryachev, P.S. PY 2018 IS PB TIRAZH Publishing House