| 摘要 |
It is composed of an elongated cylindrical titanium body, intended for implanting in a jawbone and provided, at its outer end, with a frusto-conical coaxial portion (3), the larger outer base of which has a prismatic polygonal protuberance (5), whose lateral sides (8) are adapted to be joined to external mechanical elements by way of key.The outer surface of prismatic protuberance (5) is fitted with an outward tubular extension (6), coaxial to the main body, provided with a central hole (10) which allows the fixing screw to be threaded through and whose outer surface (8) is provided with threads adapted to receive the threading of an inner threading formed on the base of a preprosthetic cap, provided with a through hole which allows the fixing screw to go through from the prosthesis to the implant.
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