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Figure 3. Localization of Msx1 (A,B), Msx2 (C,D), and Bsp (bone sialoprotein) (E,F) in the molars of a 14-day-old mouse. Panels B, D, and F are high-magnification views of the distal root of the 1st molar as shown in panels A, C, and E, respectively. pu, pulp; pdl, periodontal ligament; ab, alveolar bone; od, odontoblasts; ce, cementoblasts; ob, osteoblasts; am, ameloblasts; ers, epithelial root sheath. Large arrow, small arrow, and arrowhead indicate the expression in odontoblasts, cementoblasts, and Malassez epithelial cell rests, respectively.
