Nasal Notch Of The Maxilla, Anterior View

Description

Maxillary nasal notch (incisura nasalis maxillae) forms the inferolateral margin of the piriform (anterior nasal) aperture in this anterior view of the facial skeleton. The curved rim lies lateral to the anterior nasal spine and superior to the alveolar process over the maxillary incisors, while the frontal process of the maxilla rises superiorly toward the nasion to meet the nasal bone. Medially, the opposing right and left maxillae define the bony nasal opening, and the surface contour of the maxilla can be appreciated as it sweeps laterally toward the infraorbital region. Piriform aperture anatomy matters whenever the bony inlet to the nasal cavity limits airflow or guides surgical access. Congenital narrowing (piriform aperture stenosis) presents with neonatal nasal obstruction, and the inferolateral bony margin at the maxillary nasal notch is the target for sublabial drilling to enlarge the airway while protecting the nasal mucosa and the roots of the central incisors. Fracture patterns also track this rim: Le Fort I fractures cross the anterior maxilla just superior to the teeth and can distort the nasal base, so a fixed anterior perspective that emphasizes the curvature and bilateral symmetry of the notch helps when teaching facial buttresses and planning reduction. A critical landmark. Use this illustration in head and neck anatomy courses to anchor terminology from Terminologia Anatomica, and in maxillofacial trauma or rhinoplasty publications discussing the piriform aperture, anterior nasal spine, and anterior maxillary buttress. It also fits patient education materials on nasal obstruction where a bony cause is being explained. Anatomical accuracy verified by SciePro's Medical Advisory Board.