The best material for taking full crown veneers impression is.. Poly vinyl siloxane - Additional silicone NIL NAM March 27, 2017 The best material for taking full crown veneers impression is: A) Poly-sulphide B) Poly-ether C) Irreversible hydrocolloid D) Poly vinyl siloxane (Additional silicone).*** Share This: Facebook Twitter Google+ Stumble Digg