Patent ID: 8845327
Filing Date: 2014-09-30
Classification: A61C

Abstract:
1. A combination of a modeling aid and a casting abutment for a dental implant, said casting abutment comprising: wherein the occlusal portion comprises, on a peripheral surface thereof, a plurality of adjacent segments each of which has an exterior surface that tapers outwardly from a coronal end to an apical end, the plurality of adjacent segments extending coronally from the apical most rim of the occlusal portion, wherein the apical end of each segment has a diameter that is greater than a coronal end diameter of the apically adjacent segment, such that the segments collectively form a series of saw tooth-shaped crests that face the transition portion, wherein the modeling aid consists of combustible plastic and comprises a through bore, and the through bore of the modeling aid and/or the segments on the casting abutment are dimensioned so as to produce a non-positive engagement therebetween, and wherein the through bore of the modeling aid is provided with a stop on an inner surface of the modeling aid for limiting the distance by which said modeling aid is forceable onto the occlusal portion, such that a gap is created between the lower edge of the modeling aid and the apical most rim of the casting abutment, such that, in use, at least one segment is exposed.