主权项 |
1. A dental implant for implanting within a human jawbone, the implant comprising:
an implant body having an outer surface, a longitudinal axis and including a coronal end and an apical end; and a plurality of differently sized threaded regions positioned on said outer surface, said threaded regions having respective minor diameters, and the minor diameters of the most apically positioned one of said threaded regions progressively decreasing in diameter in the apical direction along said axis. |