a non - removable bridge dental prosthesis includes 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 a coupling member for coupling the artificial tooth to the bridge . the coupling member is integrally installed on the rear surface of the artificial tooth , and has a catching piece and a coupling projection . a coupling hole is formed in the bridge in a shape corresponding to the coupling projection and is located at a position where the coupling projection of the coupling member is formed . the coupling projection is inserted in the coupling hole of the bridge and simultaneously , the catching piece is caught on the top end of the bridge .