| 摘要 |
An implant body (12) has a non-round cross-sectional shape, for example ovoidal (12) or rectangular (12'). Lateral surfaces (32) of the implant (12) include threaded portions (38) of a circular cylinder (36) such that the implant (12), although non-round in cross section, can threadably engage a tapered circular opening (40) in the jaw bone (18) leaving lateral spaces (50). Bone grows into the spaces (50) between the implant (12) and the jawbone socket (40). The implant (12) is shaped similarly to the root structure of a natural tooth and can be oriented, about its longitudinal axis (26), at any angle relative to the general curvature of the jawbone (18) where the implant (12) is seated. A more natural appearance of the mouth is achieved; prosthetic teeth may be positioned closer together without loss of strength between the implant and the jawbone. A non-round abutment post (64) of corresponding cross section to prevent rotation of the abutment (16) relative to the implant (12).
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