Disclosed is an abutment for connecting a crown that forms an external form of an artificial tooth to a fixture embedded in a gum of a human, and comprising a body (100a), a combination portion (300a) formed at an end of the body and suitable for being combined with the fixture, a threaded portion (400a) formed at the body and penetrating through a portion of the body, a fixing screw being inserted into the threaded portion (400a) to be suitable for coupling the body to a processing device or a jig, a coupling hole (500a) formed at the body and penetrating through a portion of the body, a coupling unit being inserted into the coupling hole (500a) for connecting the body (100a) and the fixture, and a sectional surface (210a) formed at an opposite portion to the combination portion (300a) suitable for being connected to a processing device or a jig, to position the body (100a) in a processing device or in a jig when the body (100a) is coupled to a processing device or a jig.
