A dental implant abutment comprising: a crown seating portion located toward a first end of the abutment； a fixture seating portion located toward a second end of the abutment； and a main body located between the crown seating portion and the fixture seating portion, the main body including an external indexing feature located along an outer perimeter of the main body at a transition between the main body and the crown seating portion, the external indexing feature comprising an elevational variance of the outer perimeter of the main body that mates with a visually identifiable elevational variance of a mating surface of a crown with which the dental implant abutment mates.
