TY JOUR TI CHANGES IN GUM BIOTYPE IN THE PROJECTION OF DENTAL IMPLANTS KW biotype of the mucous membrane KW implant KW attached gum KW alloplant KW autograft JO Actual problems in dentistry AU Chekanova, A.A. AU Sel'skiy, N.E. AU Musina, L.A. AU Shimova, M.E. PY 2024 IS 20 PB TIRAZH Publishing House