What are functions of dentin and enamel of tooth?
TOOTH ENAMEL, is the hardest part of the tooth and also the hardest of all the tissues of human body. Tooth enamel is the outer layer of a tooth’s crown. It is a protective tooth structure that covers only the visible part of the tooth. The roots are covered by another kind of tissue, the cementum. DENTIN, is the softer tissue below the tooth enamel that forms the main mass of a tooth around the dental pulp. It supports the tooth enamel and absorbs the pressure of eating. The dentin consists of a number of micro-fibers embedded in a dense homogeneous matrix of collagenous proteins.