Figure 1From: Adhesion of Streptococcus mitis and Actinomyces oris in co-culture to machined and anodized titanium surfaces as affected by atmosphere and pH Scanning electron microscopy (SEM) images of machined (a) and anodized (b) titanium surfaces, provided by Nobel Biocare AB. The machined surface is relatively smooth with distinct orientation of the surface irregularities (anisotropic) while the anodized surface is rough with a homogenous structure (isotropic).Back to article page