It extended superiorly to the infraorbital margin
, medially to the alae of the nose, and laterally to 2 cm anterior to the pre-auricular region with an indistinct inferior margin.
Four parameters including transverse diameter and vertical diameter of infraorbital foramen and its distances from the infraorbital margin and nasal notch, were considered.
Periosteum and soft tissue adherent to the anterior surface of maxilla were carefully removed under dissecting microscope to visualize the infraorbital foramen, infraorbital margin and infraorbital notch (Fig.
In all previous reports, infraorbital margin and anterior nasal aperture were considered as landmarks of reference.
A steady downward shift of infraorbital foramen in relation to infraorbital margin was a constant feature in our observations (Table VI) but with variable rates, being maximum in group II.
Measurements of facial soft tissues of northwest Indian men were higher than northwest Indian women except beneath the chin, infraorbital margin
, and lower lip margin.
Digital paquimeter was used and had been carried through two bilateral measures: a)sagittal measure; from infraorbital margin until the superior margin of the IOF; b) transversal measure, of the lateral margin of piriformis opening until the medial margin of the IOE using the transversal plan.
With the assistance of a digital paquimeter it was obtained the value of the distance between the infraorbital margin and the superior border of IOF.
Figun & Garino, point out that, the topography of IOF presents unquestionable interesting on the anesthesia practice of alveolar anterior superior nerve and the infraorbital branch, because the foramen is an excellent reference point to intraoral punctions and extra oral, 5 to 7mm inferior to the infraorbital margin.
describe a bigger variation, between 3 to 7mm inferior to the infraorbital margin.
a) Orbital length: The perpendicular distance between the supraorbital and infraorbital margins
of the orbit.