TY CONF TI LIFE QUALITY ASSESSMENT OF THE HEREDITARY FACTOR IMPACT OF PATIENTS WITH SEVERE CHRONIC GENERALIZED PERIODONTITIS KW JO International Congress "dentistry of The great Urals" November 29-December 1, 2017 Youth scientific school on fundamental dentistry AU Kazakova, A.V. AU Batyzheva, Z.S. PY 2024 PB TIRAZH Publishing House