Restauration fonctionnelle par ajustement occlusal

Abstract

The goal, for occlusal adjustment, is to ensure stable and functional occlusion. Anatomical and functional examination of the occlusion is performed by assessing the mandibular position (physiological position or adaptative position), maximal intercuspidation, all teeth overjets and overbites, cuspid depth and occlusal curves. The localization, direction, and depth of wear facets allows differentiating mastication-induced physiological erosion from bruxism-induced para-functional erosion. As complementary examination, a screening for occlusal interferences and orofacial (lingual and labial) parafunctions that may constitute a complication of the clinical presentation. The value of the shift between the physiological mandible position and the habitual intercuspidation position is the basis of the first therapeutic phase. In case of a shift ≤ 1 mm, precontacts are removed but the maximal intercuspidation is preserved. If the shift is > 1 mm, correction necessitates a modification of patient's maximal intercuspidation. This first phase is followed by the adjustment of functional courses and, if necessary, by the correction of orofacial functions.