Integrated Biomechanical and Topographical Surface Characterization (IBTSC).
Artikel i vetenskaplig tidskrift, 2014
In an attempt to reduce the need for animal studies in dental implant applications, a new model has
been developed which combines well-known surface characterization methods with theoretical
biomechanical calculations. The model has been named Integrated Biomechanical and
Topographical Surface Characterization (IBTSC), and gives a comprehensive description of the
surface topography and the ability of the surface to induce retention strength with bone.
IBTSC comprises determination of 3D-surface roughness parameters by using 3D-Scanning
Electron Microscopy (3D-SEM) and Atomic Force Microscopy (AFM), and calculation of the
ability of different surface topographies to induce retention strength in bone by using the Local
model. Inherent in this integrated approach is the use of a length scale analysis, which makes it
possible to separate different size levels of surface features.
The IBTSC concept is tested on surfaces with different level of hierarchy, induced by mechanical
as well as chemical treatment. Sequential treatment with oxalic and hydrofluoric acid results in
precipitated nano-sized features that increase the surface roughness and the surface slope on the
sub-micro and nano levels. This surface shows the highest calculated shear strength using the
The validity, robustness and applicability of the IBTSC concept are demonstrated and discussed.
surface mean slope