A method for producing a dentist tool includes simulation of predetermined horizontal, vertical, and tilt movements to be followed by a cutting tool to remove a predetermined part of tooth structure for further treatment of a tooth. An overlay is determined to fit the tooth by determining a first guiding edge within the overlay corresponding to the predetermined movements and determining a second guiding edge within the overlay spaced apart from the first guiding edge and corresponding to the predetermined movements. The first and second guiding edges are provided to contact the cutting tool so as to guide horizontal, vertical, and tilt movements of the cutting tool such that the cutting tool follows the predetermined horizontal, vertical, and tilt movements for removal of the predetermined part of tooth structure. The determined overlay is produced with the first and second guiding edges and such that it fits the tooth.
