PMID: 11930717Apr 5, 2002Paper

The influence of surface roughness on bacteria adhesion on titanium

Zhonghua kou qiang yi xue za zhi = Zhonghua kouqiang yixue zazhi = Chinese journal of stomatology
M LiZ Wang

Abstract

To investigate the correlation between surface roughness and bacteria adhesion. Surface roughness of four abutments were determined by Talysurf/6p-120 topographer. Ra, Rz, Rp, Rv, Ry and Sm values were gathered. Commercial pure titanium and titanium alloy discs, S. mutans and A. viscosus were used in adhesion experiment. Ra values (in microns) of the tested abutments were: 0.1556, 0.2073, 0.6976, and 0.3811. No statistical difference was observed in bacterial quantity when Ra < 0.4528 microns and Rz < 3.3882 microns in adhesion experiment. The surface roughness of Ra < 0.4 micron and Rz < 3.4 microns is recommended for implant abutment.

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