Term Name:	dentin dysplasia type IB
Synonyms:
Definition:	A dentin dysplasia characterized by teeth with crowns that have normal morphology and roots that are short, blunt, and malformed, resulting in tooth hypermobility and subsequent exfoliation of permanent dentition starting in the second decade that has_material_basis_in heterozygous mutation in the VPS4B gene on chromosome 18q21.
Ontology:	Human Disease [DOID:0070705]   ( DOID:0070705 )