Patent ID: 8430668
Filing Date: 2013-04-30
Classification: A61C

Abstract:
1. A dental fixture component having a longitudinal axis, the dental fixture component comprising: a body portion configured for being placed in bone, the body portion having a maximum outer envelope diameter; an emergence profile portion adjacent said body portion, said emergence profile portion having a longitudinal length oriented along said axis, a lingual aspect and a facial aspect, the emergence profile portion having at least one concave surface disposed coronally relative to the body portion, the outer diameter of the emergence profile portion at the concave surface being less than the maximum outer envelope diameter of the body portion; and a tapered coronal portion adjacent said emergence profile portion, said tapered coronal portion having a first end adjacent said emergence profile portion and a terminal end portion comprising a second end having at least two retention recesses circumferentially spaced from each other, the second end further comprising an arcuate surface on a lingual side of the tapered coronal portion and an arcuate surface on a facial side of the tapered coronal portion; wherein said dental component further comprises and exterior surface having a margin shoulder including a lingual side and a facial side, said margin shoulder extending interproximally from said lingual side to said facial side such that said margin shoulder continuously slopes axially away from said terminal end portion, wherein, as between said lingual and facial sides, said lingual side of said margin shoulder is positioned closer to said terminal end portion; said margin shoulder further comprising an arcuate transition zone positioned axially between a radially outermost edge of said margin shoulder and said first end of said tapered coronal portion, said transition zone defined by an increasing radius of said first end of said tapered coronal portion along said axis such that said first end of said tapered coronal portion flares continuously radially outwardly and in an axial direction away from said terminal end portion and toward said radially outermost edge of said margin shoulder, and wherein the concave portion of the emergence profile is disposed apically relative to the margin shoulder.