Research objectives: Determinate mean value: depht, lenght of maximal opening path, lenght of maximal protrusion path and maximal lateral displacement, angle of Bennett, condylar slope angle, immediate lateral displacement. Subjects and methodology: Cross-sectional descripble on 30 students aged 18-25 with a normocclusion in class I of Angle, enregistrement the variable with Quick-Axis FAG. Results: condylar slope: right: 30,65 + or - 14,67, left: 34,10 + or - 14,0; angle of Bennett: right: 5,65 + or - 1,70, left: 5,32 + or - 1,25... Conclusions: duplicate records in some of first mm of movement. Towards the end of mouvement, the record line is far away and different in length and curvature degree. The record line of maximal retrusion-opening is longest.
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