An inclined abutment for a cemented prosthesis in dental implantology. The abutment has a supragingival portion having a substantially truncated-cone shape with an elliptical base and having a longitudinal axis, an emergence surface coinciding with the elliptical base of the supragingival portion, and a transmucosal portion which has an elliptical base coinciding with the emergence surface and a longitudinal axis which ends at the apex with an antirotational connection for the insertion of the abutment in use. The volume of the supragingival portion remains essentially constant upon variation of the angle defined by the longitudinal axis of the supragingival portion and the longitudinal axis of the transmucosal portion, when the dimensions of the emergence surface and the height of the supragingival portion remain unchanged with respect to the longitudinal axis thereof.