%0 Journal Article %T THE FEATURES OF CHRONIC PERIODONTITIS, COMPLICATED BY FURCATION DEFECTS. CAUSES OF DEFECTS. LITERATURE REVIEW %A Khabadze, Z.S. %A Gasbanov, M.A. %A Bolyachin, A.V. %A Taberdiev, T.R. %A Mordanov, O.S. %K furcation defects, furcation perforation, furcation periodontitis, apical periodontitis, root canal %J Actual problems in dentistry %D 2022 %N 18 %P 7 %I TIRAZH Publishing House