Figure 2 | Scientific Reports

Figure 2

From: A unique mineralization mode of hypermineralized pleromin in the tooth plate of Chimaera phantasma contributes to its microhardness

Figure 2

Various images of the longitudinal section of the palatine tooth plate cut along the line in Fig. 1b. (a) A contact microradiogram. Radiopaque white regions correspond to hypermineralized pleromin. The upper pleromin is vascular pleromin (VP) and the lower pleromin that forms a row of oval is compact pleromin (CP). Radiolucent gray and black regions correspond to less mineralized osteodentin (OD). Immature pleromin is found in the posterior region (left side), and mature pleromin is present in the anterior region (right side). (b) Optical microscopic images. Immature pleromin is opaque and mature pleromin is transparent. Arrows indicate the biting area. Note that pleromin is exposed on the occlusal surface by wear. Enlarged image of (b1) immature VP and (b2) mature VP, indicated respectively by rectangle (b1, b2) in (b). Pleromin around vascular canals (VC) is peritubular pleromin (PP) and region between PPs is intertubular pleromin (IP). (b3) Enlarged image of CP, indicated by rectangle (b3) in (b).

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