Figure 5
From: Erosion behaviour of human, bovine and equine dental hard tissues
Scanning electron micrographs of acid-etched native dentin surfaces after 120 s incubation in HCl at pH = 2.3. (a) bovine dentin, (b) equine dentin, (c) primary dentin, (d) permanent tooth dentin. Comparing the dentin surfaces, there are structural similarities between bovine dentin and human permanent tooth dentin (diameter of dentin tubules ~ 2.5 µm). Equine dentin (b) is characterised by low density and irregular arrangement of dentin tubules (diameter < 2.0 µm). The dentin tubules of primary teeth are slightly larger (~ 3.0 µm) than those of permanent teeth (~ 2.5 µm). Original magnification: 500-fold.
