Dentin
ONE OF THE FOUR MAJOR COMPONENTS OF TEETH
Dentine; Substantia eburnea; Denteen; Dentene; Secondary dentin; Primary dentin; Mantle dentin
Dentin () (American English) or dentine ( or ) (British English) () is a calcified tissue of the body and, along with enamel, cementum, and pulp, is one of the four major components of teeth. It is usually covered by enamel on the crown and cementum on the root and surrounds the entire pulp.