| 摘要 |
PCT No. PCT/EP98/01472 Sec. 371 Date Oct. 1, 1998 Sec. 102(e) Date Oct. 1, 1998 PCT Filed Mar. 21, 1997 PCT Pub. No. WO98/42273 PCT Pub. Date Oct. 1, 1998A dental implant has a two-sided taper of the head part which is formed by bevels tapering down on both sides of the threaded bore toward the edges of the jaw bone. The bevels form lines of intersection with the circumference of the head part, starting from the edge areas of an end face of the head part and running at a variable height, corresponding to the shape of the upper edges of the jaw bone. A contact body connected to the crown is adapted to the taper at the upper edge of the head of the implant. The two-sided taper may be asymmetrical in design. The surface of the contact body facing the crown corresponds in shape to the head part and has bevels with a corresponding complementary shape. This yields a simplified prosthetic system with integrated security against twisting which has improved mechanical stability in both buccal and lingual directions.
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