Regional Odontodysplasia, also known as odontodysplasia, is related to hemifacial hyperplasia and hair whorl. An important gene associated with Regional Odontodysplasia is DSPP (Dentin Sialophosphoprotein), and among its related pathways/superpathways are COPI-independent Golgi-to-ER retrograde traffic and Cytoskeletal Signaling. Affiliated tissues include bone, and related phenotypes are carious teeth and delayed eruption of teeth