Dentinogenesis Imperfecta 1, also known as dentinogenesis imperfecta type 2, is related to dentin dysplasia and brittle bone disorder. An important gene associated with Dentinogenesis Imperfecta 1 is DSPP (Dentin Sialophosphoprotein), and among its related pathways/superpathways are Extracellular matrix organization and ECM proteoglycans. Affiliated tissues include bone and liver, and related phenotypes are dentinogenesis imperfecta and yellow-brown discoloration of the teeth