TY JOUR TI LABORATORY ANALYSIS OF THE MORPHOLOGY AND QUALITY OF ROOT CANAL TREATMENT IN ENDO-PERIODONTAL LESIONS KW root canal treatment KW endo-periodontal lesions KW scanning electron microscopy KW root canal cross-sections KW morphostructural changes in the surface of root dentin JO Actual problems in dentistry AU Mandra, Y.V. AU Svetlakova, E.N. AU Semencova, E.A. AU Legkih, A.V. AU Ivashov, A.S. AU Kotikova, A.Y. AU Kozmenko, A.N. AU Gegalina, N.M. AU Kovalenko, A.S. AU Semina, Y.D. PY 2025 IS 21 PB TIRAZH Publishing House