Figure 6

qBSE images. (a) Normal rabbit molar tooth. En = enamel; C = cementum; Den = dentin. (b) Human iliac crest. CC = calcified cartilage; B = bone. (c) Tiled image of the whole cross section of Calc3. The arrow indicates the region from where the nanoindentation measurements were obtained. (d and e) High magnification of vastly mineralized areas in specimens Calc2 and Calc3. The 'black holes' where no mineral was deposited are adipocyte 'fat'(Ad). (f) Higher magnification of the largest particle in (d). (g) High magnification of poorly mineralized region in Calc3. The arrow indicates collagen fiber bundles and the asterisk indicates smooth muscles. (h and i) Highly mineralized nodules in Calc 4. The arrows in h are pointed towards incremental growth lines that indicate waves of calcification. (j and k) Tiled images of the whole cross sections of Calc4 and Calc6. The mineral density (MD) is the lowest in the dark blue regions and the highest in the light gray regions, as in the enamel in (a) in all color images. A lighter gray shade represents higher MD in the gray scale images. The individual size scale bars appear on each image.