Endosseous dental implant
Endosseous dental implants include an at least partly, externally-threaded body portion, an internal cavity or shaft with an opening to the cavity or shaft at the top surface of the implant, and, in the internal cavity or shaft, a threaded portion, multi-pointed/sided, or multi-slotted wrench-engaging surfaces and tri-lobed surfaces.
1 . An endosseous dental implant comprising:
a body portion having at least part of its external surface threaded and an internal shaft or cavity comprising multi-pointed/multi-sided or multi-slotted wrench-engaging surfaces, tri-lobed surfaces and an internally-threaded portion, said internal shaft or cavity beginning at an opening in the top surface of said implant and ending inside said body portion.
2 . The endosseous dental implant of claim 1 wherein said body portion is externally threaded over substantially its entire length.
3 . The endosseous dental implant of claim 1 or claim 2 wherein said wrench-engaging surfaces lie in substantially the same area in said shaft or cavity, and wherein each of the points or slots of said wrench-engaging surface lies between two of the lobes of said tri-lobed surface.
4 . The endosseous dental implant of claim 1 or claim 2 wherein said external surface of said body portion is partly threaded and, at or near the top of said dental implant, is unthreaded.
5 . The endosseous dental implant of claim 1 or claim 2 wherein said internal shaft or cavity extends downwardly into said body portion from said opening at the top surface of said dental implant.
6 . The endosseous dental implant of claim 1 further comprising a non-circular chamfer or bevel formed partly or entirely around said opening.
7 . An endosseous dental implant of claim 1 wherein the multiple points and sides represent the points and sides of an isosceles triangle.
8 . An endosseous dental implant of claim 1 wherein the multiple points and sides represent the alternate points and sides of a hexagon of equal length sides.
9 . An endosseous dental implant of claim 1 further comprising a non-circular bevel or chamfer formed at the junction of the top surface of said implant and the tri-lobed surfaces.
10 . An endosseous dental implant of claim 1 further comprising a non-circular bevel or chamfer formed at the junction of the top surface of the implant and the multi-pointed, multi-sided wrench-engaging surfaces or multi-slotted wrench-engaging surfaces.