Patent ID: 6290499
Filing Date: 2001-09-18
Classification: A61C

Abstract:
A transfer-type impression coping for cooperating with a resilient impression material to take an impression for making a model of a region in a mouth adjacent to an aperture in gingiva which exposes an implant that is installed in bone, said transfer-type impression coping comprising:a plurality of surfaces defining a polygonal fitting for mating with a corresponding fitting of said implant;an outer surface having a transgingival section configured to fit within said aperture and a supragingival section for embedment in said resilient impression material, said supragingival section having at least one part with a non-circular cross-sectional profile that is circumferentially symmetric around a central axis of said coping, said cross-sectional profile being configured relative to said plurality of surfaces such that an orientation of said plurality of surfaces relative to said impression material is substantially the same when it is transferred back into said impression material after said impression is taken, said transfer type impression coping capable of being transferred back into said impression material in at least two orientations after said impression is taken; andan inner surface defining a passage that is generally aligned with said implant for receiving a screw intended for fastening said impression coping to said implant.