The study on mandibular movement during speech is designed to measure mandibular movement in three dimensions during speech along with the velocity of such movement as an aid to visualizing mandibular movement and occlusion function. Mandibular movement during speech has long been used as a guide to vertical dimension of occlusion and anterior guidance. However, obtaining accurate measurement of such movement is difficult. In this context, the literature pertaining to the mandibular movement during speech was critically reviewed.
