Amelogenesis Imperfecta, Hypomaturation Type, Iia4, also known as amelogenesis imperfecta hypomaturation type 2a4, is related to amelogenesis imperfecta, hypomaturation type, iia1. An important gene associated with Amelogenesis Imperfecta, Hypomaturation Type, Iia4 is ODAPH (Odontogenesis Associated Phosphoprotein). Related phenotypes are amelogenesis imperfecta and enamel hypomineralization