Study of the canalis mandibulae morphology in different vertical facial types

Abstract

The precise knowledge of the position of canalis mandibulae and foramen mandibulae is important for surgical and endodontic interventions on the mandible. The aim of the study is to examine the position of these anatomical landmarks in different vertical facial types. In the panorama radiograph of 26 normodivergent, 26 hypodivergent and 28 hyperdivergent arthritis (total of 1360 measurements) we measured the distance between the canalis mandibulae and interdental septums, the apex of the lateral teeth, the mandibular base, the goniac angle, and the steepness of the canal and the distance the foramen mandibulae to the anterior and posterior margin of the ramus. ANOVA and t-test statistical analysis showed that the foramen mandibulae is farer from the posterior margin of the ramus in hipodivergent facial types, in hyperdivergent facial types the canalis mandibulae was closer to the root apex of posterior teeth and in hypodivergent types to the base of the mandible. In normal and hyperdivergent individuals, the canalis mandibulae runs steeper and in the course of running it is increasingly distanced from the tangent to the base of the mandible. The position of the canalis mandibulae and the foramen mandibulae showed significant differences in the different vertical facial types. Orv Hetil. 2017; 158(46): 1841-1847.