Implant abutment assembly

Abstract

An implant abutment assembly according to the present invention comprises: a fixture screwed in and coupled to alveolar bone of a damaged tooth; an abutment comprising an attachment screw part screwed in and fixed to the fixture, a crown attachment part provided above the attachment screw part and having a plurality of expandable collet sections, and a crown support part extending in the radial direction around the outer circumferential surface between the attachment screw part and crown attachment part and having a seat part the upper surface or which curves out radially from the center; a crown inserted into and supported by the crown attachment part of the abutment, the bottom surface contacting the seat part of the crown support part; and a fixing screw screwed into the crown attachment part through a hollow attachment part provided in the central part of the crown to expand the collet sections and bring the bottom of the crown in close contact with the crown support part.

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