"DOID:0080243"^^ . _:vb50940621 . _:vb50940621 . _:vb50940621 . . "disease_ontology"^^ . . "amelogenesis imperfecta type 3B"@en . _:vb50940621 . . _:vb50940621 . . "OMIM:617607"^^ . "An amelogenesis imperfecta type 3 that is characterized by enamel that is reduced in mineral density and is thin, chipped, and absent in places and that has_material_basis_in heterozygous mutation in the amelotin gene."^^ .