Interlocking, multi-part endosseous dental implant systems
AssigneeCore-Vent Corporation
InventorsGerald A. Niznick, Alan R. Balfour
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Abstract
An endosseous dental implant system includes a dental implant having a multi-sided projection at its top end and an internally threaded or unthreaded passage extending into the body of the implant through an opening in the projection at the top of the implant, and an abutment having an internal passage for receiving a fastener that passes through the internal passage of the abutment, and threads into the internal passage inside the implant. The abutment has a multi-sided internal cavity at its bottom end with each of the cavity sides perpendicular to the longitudinal axis of the abutment so that the cavity, when seated over the projection at the top of the implant, forms an anti-rotational, interlocking junction with the implant.
Claims20
An endosseous dental implant adapted for insertion in a passage formed in the jawbone of a patient, said implant having a substantially cylindrical-shaped body, said implant having, at its top end, unthreaded, multi-sided projection means having at least one side that tapers outwardly and downwardly from the upper end of said projection means to the upper surface of said implant, said implant having an internal threaded passage extending through said projection means and downwardly inside the body of the implant from its top end, and an abutment adapted for use with said dental implant, said abutment including an unthreaded, untapered, multi-Sided cavity inside an opening at the bottom end of said abutment, said cavity having the same number of sides as said multi-sided projection means, each of said sides inside said cavity being substantially untapered, said projection means having a size and shape sufficient to fit within, and frictionally engage the sides of said cavity and to pass sufficiently far into said cavity to form a sealing engagement and a locked, anti-rotational connection between the bottom end of said abutment and the top end of said implant, closing the margin between said abutment at the bottom end and said implant at its top end.
An endosseous dental implant having a size and shape suitable for insertion in a passage formed in the jawbone of a patient, said implant having a substantially cylindrical-shaped body, said implant having, at its top end, unthreaded, multi-sided projection means having a plurality of sides that taper outwardly and downwardly from the upper end of said projection means to the upper surface of said implant, said projection means being non-rotational with respect to said body of said implant, said implant having an internal threaded passage extending through said projection means and downwardly inside the body of said implant from a point at or below its top end, and an abutment adapted for use with said dental implant, said abutment including an unthreaded, untapered, multi-sided cavity inside an opening at the bottom end of said abutment, said cavity having the same number of sides as said multi-sided projection means, each of said sides inside said cavity being substantially untapered, said projection means having a size and shape sufficient to fit within and frictionally engage the sides of said cavity and to pass sufficiently far into said cavity to form a locked, anti-rotational connection between the bottom end of said abutment and the top end of said implant.
Dependencies are inferred from the claim text.