1. A method for designing a dental restoration having a coping substructure and a crown superstructure, the method comprising: providing an electronic model of a preparation site onto which the dental restoration is to be installed, the electronic model of the preparation site including surrounding anatomy; obtaining an electronic model of an exterior surface of the dental restoration based on the surrounding anatomy; generating an abutment surface of the dental restoration based on the preparation site; generating a coping exterior surface based on a first offset from the abutment surface of the dental restoration; deforming the coping exterior surface based on constraints related to the coping substructure or the crown superstructure to form a finalized coping exterior surface; combining the finalized coping exterior surface with the abutment surface to form an electronic model of the coping substructure; generating a crown interior surface based on a second offset from the finalized crown exterior surface; and combining the crown interior surface with the crown exterior surface to form an electronic model of the crown superstructure.