part of part of has part has part characteristic of inheres in has modifier Abnormal dental enamel morphology Enamel abnormality Defective tooth enamel HP:0006322 UMLS:C4021800 HP:0000682 Malformation of dental enamel Malformation of tooth enamel An abnormality of the dental enamel. UMLS:C4280262 Abnormality of dental enamel The dental enamel is the external layer of the teeth, being a highly mineralized substance consisting primarily of hydroxylapatite. Enamel abnormalities Dystrophic tooth enamel Abnormal tooth enamel UMLS:C4280615 Abnormality of dental structure Abnormal odontoid tissue morphology quality abnormal calcareous tooth enamel