[Naso-ethmoido-maxillary protrusion (NEMP): a specific dysmorphosis]

Abstract

Naso-ethmoido-maxillary protrusion (NEMP) is a rare dental and facial dysmorphosis, with excessive growth of basicranium, ethmoid, maxillary, and nasal bones. The clinical presentation includes nasal and upper lip protrusion, telecanthus, a class 2 malocclusion with maxillary protrusion and exoclusion. The craniofacial field is increased in Delaire's analysis. Contrary to isolated maxillary protrusion secondary to membranous ossification dysfunction, NEMP is a constitutional anomaly resulting from an excessive primary growth of the chondrocranium. The therapeutic management of NEMP should take into account these specificities.

Keywords: Angle class II malocclusion; Chirurgie orthognathique; Classe 2 squelettiques; Craniofacial abnormalities; Croissance cranio-faciale; Embryologie; Embryology; Malformations cranio-faciales; Orthognathic surgery orthodontics corrective; Traitement orthodontique.