Abstract: In a method of adapting a bridge structure (22) with a plurality of connectors (23) such that the bridge structure fits anchoring elements in a patient's jaw, a reference plane (27) for the bridge structure and a reference plane (21) for a model (20) of a patient's jaw are determined. Moreover, extension members (30) are mounted on each of the anchoring elements (24) in the model. Prior to the actual adaptation, the bridge structure and the model are mounted such that their reference planes extend in a predetermined plane. A tool is controlled to shorten each of the extension membes and each of the connectors such that their end surfaces are parallel with the predetermined plane after shortening.