DENTAL PROSTHESES CEMENTED ONTO IMPLANTS AND/OR ABUTMENTS HAVING A REVERSE MARGIN

摘要

A dental abutment, or a dental implant having an integrated abutment, in which the occlusal part of the abutment to which the dental prosthesis is to be cemented features a shoulder having a reverse margin. At the point where the shoulder meets the outer profile of the gingival part of the abutment, the shoulder is at an acute angle with respect to the longitudinal center axis of the abutment, thereby causing any cement ejected during mounting of the prosthesis to be ejected in a direction away from the gingiva.

主权项

1. A dental abutment for attachment to a dental implant for supporting attachment of a dental prosthesis by cementation with a luting agent to the dental abutment, the dental abutment comprising:
a main body having a gingival part for attachment to the dental implant and an occlusal part to support cementation of the dental prosthesis onto the dental abutment with the luting agent, the main body having a longitudinal center axis, wherein the occlusal part of the main body has an outer profile radially closer to the longitudinal center axis than an outer profile of the gingival part at the interface between the occlusal part and the gingival part, thereby defining a shoulder between the occlusal part and the gingival part, wherein the outer profile of the gingival part at a point where it meets the shoulder is generally parallel to the longitudinal center axis, and wherein a face of the shoulder that meets the outer profile of the gingival part at the point is at an acute angle with respect to the longitudinal center axis.