Figure 51-5. A, Longitudinal section of an incisor. B, Cross-section of the crown of an incisor, showing enamel, dentin, and pulp. C, Side view of an incisor, showing the area of epithelial attachment and the line of the cemento-enamel junction. D, Longitudinal section of a molar, showing the bifurcation of the pulp cavity. Click for high resolution image.