Patent ID: 7303396
Filing Date: 2007-12-04
Classification: A61C

Abstract:
1. A dental implant adapted to be at least partially implanted within an upper or lower portion of a jawbone, said dental implant comprising: an apical insert adapted to be at least partially inserted in a jawbone, said apical insert including an upper portion and a lower portion each having ends, said lower portion including an outer surface adapted to engage the jawbone, said upper portion including a connection cavity that extends along a longitudinal axis of said apical insert, said connection cavity including a connection surface, said upper end of said upper portion having an opening that provides access to said connection cavity, said apical insert including a plurality of engagement surfaces positioned between said ends of said upper and lower portions; a coronal base adapted to be at least partially inserted in the jawbone when connected to said apical insert that has been at least partially inserted in the jawbone, said coronal base including a body having a longitudinal axis, said body including an upper engagement surface, a distal end and an internal passageway extending along said longitudinal axis of said body and between said upper engagement surface and the distal end, said distal end and said upper engagement surface each including an opening into said internal passageway, said opening in said distal end adapted to telescopically receive at least a portion of said upper portion of said apical insert, said internal passageway including a plurality of engagement regions adapted to engage a plurality of said engagement surfaces on said apical insert when said coronal base is inserted on said apical insert, said plurality of said engagement surfaces on said apical insert and said plurality of engagement regions on said coronal base enabling said coronal base to be at least partially locked in a plurality of different positions about said longitudinal axis of said apical insert, said internal passageway of said coronal base at least substantially aligned with said connection cavity of said apical insert along said longitudinal axis of said coronal base and apical insert when said coronal base is inserted on said apical insert; an engagement abutment having an upper and lower section and an internal passageway extending along a longitudinal axis of said engagement abutment and through said engagement abutment, said upper and lower sections each having ends, each of said ends including an opening into said internal passageway, said opening in said lower end adapted to telescopically receive at least a portion of said upper engagement surface of said coronal base when said engagement abutment is inserted on said coronal base, said internal passageway including at least one surface adapted to engage at least one surface of said upper engagement surface of said coronal base to inhibit rotation of said engagement abutment about said longitudinal axis of said coronal base when said engagement abutment is inserted on said coronal base, said internal passageways of said coronal base and said engagement abutment at least substantially aligned along said longitudinal axis of said coronal base and engagement abutment when said engagement abutment is inserted on said coronal base, said upper end adapted to support a prosthetic tooth or crown; and, a fastener to hold together said engagement abutment to said coronal base and said coronal base to said apical insert, said fastener including a head and a body, said body adapted to at least partially extend into said internal passageways of said coronal base and said engagement abutment and into said connection cavity of said apical insert when said engagement abutment, said coronal base and said apical insert are connected together, said body of said fastener adapted to be secured to said connection surface in said connection cavity of said apical insert.