[Determination of vertical dimension of dental occlusion]

Principles and concepts in determining the vertical dimension of occlusion in mutilated dentitions are summarized. Historically, most concepts have been developed for full dentures. However, in the rehabilitation of a mutilated dentition it is often necessary to increase or change the vertical dimension of occlusion. If the vertical dimension of occlusion has to be altered the patient's adaptability to the new position should be tested during a trial period. Determination of the vertical dimension of occlusion is apparently a combination of art, science and experience.