FIG 2-1

Developing tooth

Decalcified sagittal section of a developing tooth. Ameloblasts (A) sit on the surface of the enamel matrix (EM). Dentin (D) and pulp (P) are also present (H and Lee stain; ×160).

FIG 2-2

Developing tooth

Higher magnification of Fig 2-1. Tomes’ processes (TP) extend from the ameloblasts (A), producing the enamel matrix (EM). Dentin (D) is visible in the lower left corner (×640).

FIG 2-4

Reduced dental epithelium

Decalcified sagittal section of the reduced dental epithelium (RDE) over the cusp tip of an unerupted tooth. Enamel is represented by the enamel space (ES). Dentin (D) is also visible (H and E stain; ×40).