TY JOUR TI RATIONALE FOR THE USE OF DORZALLY TILTED DISTAL ARTIFICIAL SUPPORTS FOR EXTENDED IMPLANT PROSTHESES IN ELDERLY PATIENTS KW implant KW prosthetics KW dorsal support KW final element KW peri-implant bone JO Actual problems in dentistry AU Parshin, Y.V. AU Mishnev, M.L. AU Trezubov, V.N. AU Rozov, R.A. PY 2023 IS 19 PB TIRAZH Publishing House