The invention relates to a holding system having a holding device (1) and an abutment blank (6), to a method for retaining and machining an abutment blank (6), and to a holding device (1) for retaining an abutment blank (6) having an implant interface (8) and a retainer segment (7) spaced apart from the implant interface (8), comprising a recess (3) in a basic body (2) for forming a frame having interior contact surfaces. One of the contact surfaces is spaced apart from the opposite contact surface such that a processing space (30) is formed, into which the abutment blank (6) to be machined extends. One of the contact surfaces has at least one retaining receptacle (5), which preferably is a tapped blind hole, and which corresponds to the retainer segment (7), preferably in a friction-locking manner, such that the retainer segment (7) of the abutment blank (6) is retained in the retaining receptacle (5) in a rotationally secure manner and is oriented in a predetermined position.