Patent ID: 8764444
Filing Date: 2014-07-01
Classification: A61C

Abstract:
1. A dental fixture for insertion into a human jawbone, comprising a bone contacting surface, wherein at least 50% 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 topography of the implant, the implant having a surface roughness having a value of the roughness average parameter S a ≧1 μm and having a value of the two-dimensional mean slope parameter ranging from R sl ≧tan 30° to R sl ≦tan 70°, wherein the surface roughness of the implant comprises pits and/or protrusions which are defined by walls extending into or from a fixture surface, wherein at least 50% of said pits and/or protrusions have walls having an angle of inclination of 30° or more.