Abstract: Computer-implemented method for virtually modifying a digital model of a dental restoration, wherein a user selects a point on the surface of the dental restoration, wherein a sphere having the selected point as its centre is automatically displayed, wherein the user may define to add material to or remove material from the dental restoration inside the sphere to generate a modified part of the dental restoration and leaving the rest of the dental restoration unmodified, wherein the step of adding material to or removing material from the dental restoration is automatically performed in real time on a display. Further, the invention is related to a computer-readable medium having stored thereon instructions which when executed by a processor perform the method steps of the inventive computer-implemented method.