A dental superstructure and a method of forming a curved channel therein for a fixing element by using a computer-controlled device. A dental superstructure is fixed, preferably through an intermediate piece (interface), to a dental implant integrated in the jaw bone by means of a fixing element (typically a screw) through an outlet provided with a shoulder. To allow the insertion of the fixing element, a channel is formed in the superstructure between an inlet formed in the superstructure at its side facing the oral cavity and the shoulder of the outlet. The outlet having a diameter corresponding to a threaded part of the fixing element is usually formed in a separate working process.