The contact surfaces directed away from the centre of the dental row are called facies distalis. In the anterior teeth this is the lateral surface, and in the posterior teeth, the posterior surface; (5) the masticating surface (facies masticatoria), or the surface for occlusion with the teeth of the opposite row (facies occlusalis).(1) the root sign; (2) the crown angle sign, and (3) the crown curvature sign

      To determine the location of a pathological process on a tooth, stomatologists use terms corresponding to the surface listed above: vestibular, oral, mesial, distal, occlusal, apical (towards the apex radicts).Medical coding training india