| 摘要 |
<p>Gear-shaped press-fit dental implants having multiple longitudinal teeth(20) filling circumferential surface(10a) of their bodies(10) are disclosed. While the longitudinal teeth(20) are bringing advantages replacing those of threads, such as much enlarged bone-to-implant contact, improved interlocking with bone tissue and reinforced bone penetration, the method of the implant placement 'press fit' gives freedom for asymmetrical designs. Multiple crosscuts(20a) machined into the longitudinal teeth(20) further enlarge the press-fit implant surface, and transform the undesirable shear type of stress to the surrounding bone tissue into preferable compressive stress.</p> |
