The dentin-enamel junction (DEJ), also called the dentinoenamel junction, is the specialized interface or boundary layer between the tooth's enamel (the hard, outer covering) and dentin (the softer, bulk tissue beneath it). It is not a simple flat line but a complex, multilevel biomechanical interface with a characteristic scalloped (wavy or interlocking) structure. The scallops (typically 25–100 μm in size) have convexities directed toward the dentin and concavities toward the enamel, creating

Human molar tooth anatomy diagram illustrating the internal structure with labeled components including enamel, dentin, pulp chamber, nerve, blood vessels, gum tissue, and bone

Animated 3D cross-section video of a tooth revealing its internal structure, including enamel, dentin, pulp, and nerves.

Dentin - SlideServe

Video: Dentinogenesis and the dentin-pulp complex - Video Explanation! | Osmosis | Osmosis

DENTIN - SlideServe