| 摘要 |
The invention relates to a dental fixture for insertion into a human jawbone. The fixture comprises a bone-contacting surface, wherein at least 15% of the bone-contacting surface is designed such that when a Gaussian 50 μm high-pass filter and a Gaussian 3 μm low-pass filter is applied to an original unfiltered set of measurement data which represents a topography of said surface and which is obtained at 50 times magnification by white light interferometry, the resulting filtered set of data presents a surface roughness having the roughness average parameter Sa≧1 μm and the two-dimensional mean slope parameter Rsl≧tan 30°. |
