Assessing the hierarchical structure of titanium implant surfaces

The physical texture of implant surfaces are known to be one important factor in creating a stable bone-implant interface. Simple roughness parameters (for e.g., Sa or Sz) are not entirely adequate when characterizing surfaces possessing hierarchical structure (macro, micro, and nano scales). The ai...

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Bibliographic Details
Published in:Journal of biomedical materials research. Part B, Applied biomaterials Applied biomaterials, 2016-08, Vol.104 (6), p.1083-1090
Main Authors: Matteson, Jesse L., Greenspan, David C., Tighe, Timothy B., Gilfoy, Nathan, Stapleton, Joshua J.
Format: Article
Language:English
Subjects:
Algorithms
Alloys - chemistry
Animals
Atomic force microscopy
Biomedical materials
Cell Differentiation
Humans
Implants, Experimental
interface
Materials research
Materials science
Microtexture
Osteoblastogenesis
Osteoblasts
Osteoclasts
profilometry
Roughness
Statistics
Structural hierarchy
surface analysis
Surface layers
Surface Properties
Surface structure
Titanium
Titanium - chemistry
Titanium alloys
Titanium base alloys
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Summary:The physical texture of implant surfaces are known to be one important factor in creating a stable bone-implant interface. Simple roughness parameters (for e.g., Sa or Sz) are not entirely adequate when characterizing surfaces possessing hierarchical structure (macro, micro, and nano scales). The aim of this study was to develop an analytical approach to quantify hierarchical surface structure of implant surfaces possessing nearly identical simple roughness. Titanium alloys with macro/micro texture (MM) and macro/micro/nano texture (MMN) were chosen as model surfaces to be evaluated. There was no statistical difference (p > 0.05) in either Sa (13.56 vs. 13.43 µm) or Sz (91.74 vs. 92.39 µm) for the MM and MMN surfaces, respectively. However, when advanced filtering algorithms were applied to these datasets, a statistical difference in roughness was found between MM (Sa = 0.54 µm) and MMN (Sa = 1.06 µm; p 
ISSN:1552-4973
1552-4981
DOI:10.1002/jbm.b.33462