Dentin: The Predominant Framework of the Tooth
Dentin takes precedence as the primary component in the tooth's structure, stretching nearly the entire length of the tooth. Its external surface is shielded by enamel, which wraps around the anatomic crown, while the anatomic root is safeguarded by cementum. Internally, dentin establishes the encircling walls of the pulp cavity, encompassing both the pulp chamber and pulp canals. Figure 1: Tooth section view: Beneath the coronal enamel, dentin are found Physical and Chemical Composition: The Mosaic of Dentin: In youth, dentin wears a vibrant yellow hue, aging gracefully to a deeper shade over time. Unlike resilient enamel, dentin boasts a unique viscoelasticity, allowing for subtle deformations. It comprises 35% organic matter and 65% inorganic materials, it showcases a delicate balance. The central region stands firm with a harder texture, while near the pulp, it gracefully transitions into a softer periphery. Figure 2 :Table showing Organic and Inorganic comp...