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. 2014 Dec 12;9:135. doi: 10.1186/s13018-014-0135-y

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© German et al.; licensee BioMed Central Ltd. 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Measurement of Ti surface roughness of disc and screw. Roughness measurements were conducted using a stylus profilometer (Mitutoyo Surftest SV-2000 Mitutoyo, Halifax, UK) with dedicated analysis software (Surfpak- SV V1.600). (A) Average surface roughness analysed with a contact force of 4 mN and a maximum height range of 800 μm and an evaluation length of 0.4 mm. Values represent means ± S.E.M; N = 5; normalised data analysed by Student t-test; asterisk denotes P < 0.0007. (B) Example of a trace generated for the Ti disc and Ti screw.