Constant features of the adult maxillary bone in the site of the premaxillary suture: the sutura notha, Macalister's foramina, Parinaud's canal, and the second angle of the canalis sinuosus of Wood Jones.
Constant features of the adult maxillary bone in the site of the premaxillary suture: the sutura notha, Macalister's foramina, Parinaud's canal, and the second angle of the canalis sinuosus of Wood Jones.
Rom J Morphol Embryol. 2019;60(4):1097-1103
Authors: Rusu MC, Iacov-Crăiţoiu MM, Săndulescu M, Cârstocea L, Stana DM
Abstract
Developmental theories regarding the premaxillary (incisive) suture commonly overlook it separates the premaxillary and maxillary parts of the frontal process of maxilla. Thus, one would expect that neurovascular structures within this transitory mesenchymal zone to appear embedded within the adult frontal process of maxilla. The sutura notha (false suture, Weber's sutura longitudinalis imperfecta) is a poorly described, although constantly present, shallow groove in front of the anterior lacrimal crest, being perforated by a row of holes first described, to our knowledge, by Macalister, in 1884. Macalister's foramina should be discriminated anatomically from the accessory infraorbital foramina. Macalister's foramina lead into canals, usually described as vascular, within the frontal process. We demonstrate in cone-beam computed tomography that these canals, which correspond topographically to Parinaud's vascular canal, are connected, usually through a delicate intraosseous network, with Wood Jones' canalis sinuosus (i.e., the ampullar angle of this canal located above the upper canine tooth). As this lat...
Source: Romanian Journal of Morphology and Embryology - Category: General Medicine Tags: Rom J Morphol Embryol Source Type: research