has part has part characteristic of part of inheres in part of has modifier Abnormal maxilla morphology Abnormality of the premaxilla 2010-04-23T10:59:07Z An abnormality of the premaxilla, the most anterior part of the maxilla that usually bears the central and lateral incisors and includes the anterior nasal spine and inferior aspect of the piriform rim. The premaxilla contains the bone and teeth of the primary palate. Abnormality of the intermaxillary segment of the maxilla UMLS:C4023711 HP:0010758 Abnormality of the primary palate bone Abnormality of the intermaxillary bone Abnormality of the premaxillary bone quality abnormal premaxilla