The invention relates to a scanning body system (1, 1a) for determining a positioning and orientation of a dental implant, with a base part (3, 3a) comprising an interface, and with a scanning part (2, 2a) which has a three-dimensional scanning contour and is rigidly connected to the base part (3, 3a) to form a scanning body, and with a fastening screw (4, 4a), which is provided for fastening the scanning body in the dental implant. According to the invention, provision is made that the base part (3, 3a) and/or the fastening screw (4, 4a) are provided with at least one mechanical retention means (9, 9a), which holds the fastening screw (4, 4a) securely in the scanning body after insertion into the scanning body through a passage (7, 7a) of the scanning part (2, 2a).