the present invention relates to an abutment capable of accommodating core crowns manufactured at various angles and functioning as a healing abutment having a cap attached thereto , to a method for manufacturing dental implant prostheses using the abutment , and to a method for implant surgery using the abutment wherein the abutment consists of an artificial tooth crown for an abutment formed in an upper portion of a fixture and is directly bonded using cement rather than using a healing abutment , and grooves are further formed in the upper portion of the abutment and the lower portion of the crown so as to widen the contact area between the abutment and the crown , and the abutment has a protrusion at a side surface thereof .