Patent ID: 7524188

Claim:
A dental implant part ( 1 ) comprising a mounting post ( 3 ) which is cylindrical at its upper end and has a longitudinal axis ( 2 ), a crown ( 4 ) supported directly on the mounting post ( 3 ), and a spring element ( 6 ) supported coaxially with, and being disposed between, the mounting post ( 3 ) and the crown ( 4 ), such that the crown is movable within limits in axial direction relative to the mounting post ( 3 ), said crown ( 4 ) being connected to the mounting post ( 3 ) by an internal form-locking connection ( 7 ) in the form of a bayonet lock comprising a first connecting element which is formed by radial projections ( 7 a ) extending outwardly from the mounting post ( 3 ), and a second connecting element ( 7 b ) formed by an inner annular recess ( 8 ) in a lower part of the crown ( 4 ) for receiving the radial projections ( 7 a ) and defining an inner annular inwardly extending projection of the crown disposed below said first connecting element ( 7 a ), said second connecting element ( 7 b ) having openings corresponding to said radial projections ( 7 a ) of said first connecting element, to permit insertion of the radial projections ( 7 a ) axially into the annular recess ( 8 ) and means for preventing relative rotation of the mounting post ( 3 ) and the crown ( 4 ), the annular recess ( 8 ) having a height in the direction of the longitudinal axis ( 2 ) of the implant part ( 1 ) is at said openings so large that the projections of the first connecting element ( 7 a ) can be rotated into the annular recess, and the height then becomes smaller in the direction of rotation in a ramp-like fashion up to an engagement recess, which, in the direction of rotation, is disposed in front of the next opening and serves as a rotational locking structure.