Integrated Dental Implant Abutments

Abstract

A dental abutment having a coronal portion for supporting a prosthesis separated from a post for seizing, galling or cold welding in a dental implant by a cylindrical portion and hemispheric base portion of length less than the combined length of the prosthetic head and locking taper post portions. The hemispherical portion of the abutment having a sloping shoulder with a surface that forms a small angle with a perpendicular to the cylindrical surface. A dental prosthesis system including such dental abutments.

What is claimed is: 
     
         1 . A dental abutment extending from an apical end to a coronal end along a longitudinal axis, the dental abutment comprising:
 a retention element with a base oriented towards the apical end of the dental implant and a shoulder oriented towards the coronal end of the dental abutment, the shoulder oriented at an angle of at least 12.5° relative to a plane that is perpendicular to the longitudinal axis such that the perimeter of the retention element increases with increasing distance from the coronal end of the dental abutment through the region of the shoulder;   a post extending from the apical end of the dental abutment to the base of the retention element; and   a head extending from the coronal end of the dental abutment to the shoulder of the retention element, the head having a cone angle between 2.5° and 3.5°.