dentin

Dentin is the dense, mineralized tissue beneath the enamel of a tooth and surrounding the pulp chamber. It provides structural support and gives teeth their shape. Composed mainly of microscopic tubules, dentin is less hard than enamel but still very durable. It acts as a protective layer, helping to cushion the tooth against pressure and temperature changes. When enamel wears down or is damaged, dentin may become exposed, which can lead to tooth sensitivities. Overall, dentin plays a crucial role in maintaining the strength and integrity of the tooth.