| 摘要 |
PCT No. PCT/US95/16219 Sec. 371 Date Oct. 2, 1997 Sec. 102(e) Date Oct. 2, 1997 PCT Filed Dec. 8, 1995 PCT Pub. No. WO97/21393 PCT Pub. Date Jun. 19, 1997A dental implant (10) for osseointegration in alveolar bone. The implant includes an annular shoulder (18) and a plurality of splines (32) extending axially therefrom for interdigitated engagement with similar splines of an abutment for supporting a tooth prosthesis. The bone-engaging surface (22) of the implant includes a biocompatible porous metal surface (24) into which bone can grow, an intermediate non-porous, rough, biocompatible metal surface (26) to which bone can attach that is located between the porous surface and the annular shoulder, and a smooth, non-porous biocompatible metal surface (28) located between the intermediate surface and the annular shoulder.
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