In order to improve manufacturing convenience and precision, the present invention is a three-dimensional operation in which the occlusal information between the target jaw arch and the opposing jaw arch and the planting information of the fixture to be implanted in the target jaw arch are shown. An image is obtained and a temporary prosthesis is prepared in which the joint regions formed corresponding to the joint profile of the abutment tooth to be joined to the fixture are aligned. First step； an auxiliary scan image for the temporary prosthesis is obtained. Second stage； the auxiliary scan image provides a corrected surface image for the three-dimensional surface information of the inner fitting groove of the temporary prosthesis containing the occlusal region； and the third stage； and the three-dimensional surface information of the fitting groove. Provided is a digital prosthesis manufacturing method including a fourth step in which a digital prosthesis is designed and manufactured in which a virtual coupling groove corresponding to the position and shape of the three-dimensional surface information of the coupling region is formed in the inner surface profile. [Selection diagram] Fig. 1製造便宜性及び精密性を改善するために、本発明は、対象顎弓と対合顎弓の間の咬合情報及び対象顎弓に植立されるフィクスチャーの植立情報が示される３次元作業イメージが得られ、フィクスチャーに結合する支台歯の結合部プロファイルに対応して形成された結合領域が整列配置された臨時補綴が準備される第１段階；臨時補綴に対する補助スキャンイメージが得られる第２段階；補助スキャンイメージから結合領域が含まれた臨時補綴の内側嵌合溝の３次元表面情報に関する補正表面イメージが得られる第３段階；及び嵌合溝の３次元表面情報により設定される内面プロファイル内に結合領域の３次元表面情報の位置及び形状に対応する仮想結合溝が形成されたデジタル補綴が設計及び製造される第４段階を含むデジタル補綴製造方法を提供する。【選択図】図１
