TY JOUR TI IMPROVING METHODS FOR INCREASING GINGIVAL THICKNESS IN PATIENTS WITH A THIN BIOTYPE DURING DENTAL IMPLANTATION USING ALLOGENEIC GRAFTS OF THE "ALOPLANT" SERIES KW dental implantation KW thin biotype of the gingiva KW soft-tissue augmentation KW allograft KW Alloplant KW thickness of the gingiva KW morphology JO Actual problems in dentistry AU Chekanova, A.A. AU Sel'skiy, N.E. AU Musina, L.A. AU Shimova, M.E. PY 2026 IS 2021 PB TIRAZH Publishing House