A three-dimensional optical scanning system for scanning a three-dimensional dental object (317,510,610), the system comprising a first scanning station (205,305,505,605,705) of a plurality of scanning stations configured to receive a first three-dimensional dental object (317,510,610), and further configured to rotate around a first axis (201,701) during the scanning; a second scanning station (206,306) of the plurality of scanning stations configured to receive a second three-dimensional dental object, and further configured to rotate around a second axis during the scanning; and an imaging unit comprising at least one camera and configured to rotate around an imaging unit axis during the scanning, a base station (207,307) including the first scanning station (205,305,505,605,705) and the second scanning station (206,306) arranged on the base station, wherein the base station is configured to rotate around a third axis; a control unit configured to control a third motor to rotate the base station around the third axis such that, prior to scanning of the first three-dimensional dental object (317,510,610), the first scanning station (205,305,505,605,705) of the plurality of scanning stations is brought within a scan volume, and wherein the optical scanning system is configured such that the imaging unit acquires a plurality of two-dimensional images of the first three-dimensional dental object (317,510,610) corresponding to a set of predefined static relative positions between the imaging unit and the first scanning station (205,305,505,605,705) for generating a first three-dimensional digital representation of the first three-dimensional dental object, and wherein the optical scanning system is configured to control the third motor to automatically rotate the base station around the third axis to bring the second scanning station (206,306) within the scan volume after acquisition of the plurality of two-dimensional images of the first three-dimensional dental object (317,510,610) received at the first scanning station (205,305,505,605,705). a first scanning station (205,305,505,605,705) of a plurality of scanning stations configured to receive a first three-dimensional dental object (317,510,610), and further configured to rotate around a first axis (201,701) during the scanning; a second scanning station (206,306) of the plurality of scanning stations configured to receive a second three-dimensional dental object, and further configured to rotate around a second axis during the scanning; and an imaging unit comprising at least one camera and configured to rotate around an imaging unit axis during the scanning, a base station (207,307) including the first scanning station (205,305,505,605,705) and the second scanning station (206,306) arranged on the base station, wherein the base station is configured to rotate around a third axis; a control unit configured to control a third motor to rotate the base station around the third axis such that, prior to scanning of the first three-dimensional dental object (317,510,610), the first scanning station (205,305,505,605,705) of the plurality of scanning stations is brought within a scan volume, and wherein the optical scanning system is configured such that the imaging unit acquires a plurality of two-dimensional images of the first three-dimensional dental object (317,510,610) corresponding to a set of predefined static relative positions between the imaging unit and the first scanning station (205,305,505,605,705) for generating a first three-dimensional digital representation of the first three-dimensional dental object, and wherein the optical scanning system is configured to control the third motor to automatically rotate the base station around the third axis to bring the second scanning station (206,306) within the scan volume after acquisition of the plurality of two-dimensional images of the first three-dimensional dental object (317,510,610) received at the first scanning station (205,305,505,605,705).