Dentin insight of dentinogenesis physical chemical properties

Dentine s 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.By volume 45% of dentin consists of the mineral hydroxylapatite 33% is organic material and 22% is water. Dentin which is less mineralized and less brittle than enamel is necessary for the support of enamel.Dentin rates approximately 3 on the Mohs scale of mineral hardness.