Patent ID: 9687324
Date: 2017-06-27
CPC Classifications: A61C

Claim:
1. A 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 negative impression of a set of teeth comprising a bore such that the negative impression includes a positive projection representing the bore; b) scanning the negative impression of the set of teeth comprising the bore; c) providing a three-dimensional scan representation of the negative impression comprising the positive projection representing 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, wherein a post of the post and core matches the bore of the tooth such that a distance from an outer surface of the post to the closest portion of the bore of the tooth is substantially the same throughout the post.