T-Scan III occlusal analysis showed no impact of changes in head position to the total number of occlusal contacts, the total value of the relative occlusal forces, position of the center of occlusal forces and occlusal force in relation to the middle of the dental arch. Unbalanced occlusion or a COF position outside the field, was significantly more frequent in the experimental group of subjects in an upright position and flexion of the head. Computerized occlusal analysis compared to clinical functional analysis showed more accurate and readable record of the number and intensity of premature and surface occlusal contacts. Clinical functional analysis of occlusion, showed no statistically significant difference between experimental and control group in the presence of occlusal interferences during eccentric movements of the lower jaw. In the computerized analysis of the occlusion this difference was observed in values of Delta relative force, which has been designated as a predictor of differences between analyzed groups. The research showed that computerized occlusal analysis is a very simple, objective and reliable method for evaluating occlusion of fixed dental restorations on natural teeth or implants and its use may be recommended in routine clinical practice in combination with clinical functional analysis of occlusion.