The present invention relates to a system and a method for providing a model of a superstructure joining a denture and a corresponding dental arch, the method comprising the steps of: obtaining a first 3D representation of at least a part of a preliminary model of the denture, obtaining a second 3D representation of at least a part of the dental arch comprising dental implants, and generating a model of a superstructure based on the first 3D representation, the second 3D representation, dental implant positions and dental implant orientations.