The present invention relates to a non removable bridge dental prosthesis that enables an artificial tooth for replacing a damaged tooth to be conveniently and safely installed without need of an artificial dental root or removal of an adjacent tooth. According to the present invention the non removable bridge dental prosthesis consists of: an artificial tooth to be inserted into a region from which a tooth has been lost a bridge tightly fixed to the rear surfaces of the teeth on either side of the region from which the tooth was lost and having the artificial tooth inserted and fixed to the front thereof and a coupling member for coupling the artificial tooth to the bridge. The non removable bridge dental prosthesis: has the coupling member integrally installed on the rear surface of the artificial tooth has a catching piece and a coupling projection formed so as to project and slope downward at a predetermined angle at the top and center of the coupling member has a coupling hole formed in the bridge in a shape corresponding to the coupling projection and located at a position where the coupling projection of the coupling member is formed has the coupling member which is integrally installed on the artificial tooth diagonally inserted into the region from which the tooth was lost has the coupling projection inserted in the coupling hole of the bridge fixed on the teeth on either side of the region from which the tooth was lost and simultaneously has the catching piece caught on the top end of the bridge so as to firmly fix the artificial tooth to the region from which the tooth was lost.
