Abstract: A fastening system (100) for a dental implant (30) comprising a ball shaped portion (31), wherein the fastening system (100) comprises a body (12) having a seat (10, 20) forming a cavity. The fastening system is characterized in that the body (12) comprises at least two parts (10a, 10b, 20a, 20b) together forming the seat (10, 20). The parts (10a, 10b, 20a, 20b) are arranged such that the seat (10, 20) can engage around the ball shaped portion (31) of the dental implant (30) and in that the seat (10, 20) is movable between a first position in which the parts (10a, 10b, 20a, 20b) are allowed to move relative each other, and a second position in which the parts (10a, 10b, 20a, 20b) are prevented from moving relative each other.