tertiary dentin

This detailed diagram illustrates the intricate anatomical relationship between these two tissues and the cellular components that maintain their physiological connection throughout the life of the tooth. The junction is not merely a boundary but a complex interactive zone where odontoblasts, with their cell bodies residing in the pulp and their processes extending into dentinal tubules, create a living bridge between these distinct tissues.

This histological image provides an excellent visualization of the four distinct histological zones that comprise healthy dental pulp tissue. The left side of the image shows a low-magnification view of a tooth section with pulp tissue highlighted, while the right side presents a higher-magnification view clearly delineating the four specialized zones: the odontoblast layer, the cell-free zone of Weil, the cell-rich zone, and the central pulp core.