method for manufacturing digital denture and system thereof

In order to improve manufacturability and accuracy, the present invention provides a three-dimensional operation image obtained by displaying information on the occlusion of the opposed interaxial arches from the target arch of the subject to be prosthesis and the placement information of the fixture to be placed on the target arch, A provisional provisional prosthesis in which a coupling region formed corresponding to a margin profile of an abutment arranged in an aligned arrangement is prepared; A second step of acquiring an auxiliary scan image along an inner surface type joint of the temporary prosthesis where the coupling region is formed; A third step in which the auxiliary scan image is inverted to obtain a stereoscopic corrected corrected surface image of the mold recess and the engaging area; And a fourth step of designing and manufacturing a digital prosthesis in which a virtual concave groove corresponding to a position and shape of an inverted image of the coupling region is formed in an inner profile set in accordance with an inverted image of the mold groove, to provide.