System and computer-implemented method of designing and/or manufacturing a post and core to match a bore of a tooth, said method comprising the steps of: a) obtaining at least one impression of a set of teeth comprising a bore b) scanning the impression of the set of teeth comprising the bore c) providing a three-dimensional scan representation of the impression comprising the bore d) transforming the three-dimensional scan representation to a three-dimensional positive working model of the set of teeth and the bore and e) designing a post and core model from the positive working model of the bore. The invention relates in particular to CAD/CAM design and/or manufacture of post and core.
