StomatologyEduJournal1-2015 | Page 51

OCCLUSAL EQUILIBRATION BETWEEN OPTION AND CLINICAL REALITY Figure 1 Gothic pyramidal aspect of a dental lateral cusp Figure 3 Distance between centric relation (CR) and centric occlusion (CO) on the upper segment of Posselt’s diagram Figure 4-5 Mandibular closing trajectory (closing line) around hinge axis in frontal plane and the possible deviations towards the right or left side of the mandible. On sagittal closing trajectory (closing arch) around the hinge axis of the mandible it can be deviated towards the mesial or distal Figure 6 When the mandible on the close line (frontal plane) moves to the right side, its right quadrant moves to the cheek and the left quadrant moves to the tongue and vice versa indicated because it removes the disagreement and occlusal and temporomandibular joint dysfunctions of the TMJ-dysfunction syndrome. Fully functional maxillary and mandibular dental arches have the role to protect a harmonious occlusal function against parafunctional activity of neuromuscular system: pain around the temporomandibular joints or the masticatory muscles with or without clicking, STOMA.EDUJ (2015) 2 (1) Figure 2 Occlusal slopes of maxillary and mandibular support cusps and guidance cusps Figure 7 The occlusal interferences between the occlusal slopes of lateral teeth (red lines ) which force the mandible to move towards the right side inability to fully open the mouth, head and neck aches (Torii, Chiwata, 2007). Factors such as the interocclusal distance envelope of mandibular motion, chewing stroke, tooth to tooth relations and determinants of occlusion can be improved by occlusal adjustments at the level of working or balancing quadrants. An equilibrated occlusal function can be also 51