Occlusal vertical dimension: alteration concerns.

This article exposes common myths supported by restorative dentists that serve to limit our potential for achieving more favorable results. The need to alter occlusal vertical dimension (OVD) signifies a number of concerns that include: bite force measurements, rest vertical dimension, effect on temporomandibular joint loading, effect on tooth loading, and neuromuscular adaptation/stability. There appears to be sufficient scientific support to conclude that alteration of OVD can provide a biologically compatible adjunct to treatment. These alterations can improve dentofacial esthetics, create improved visual proportions in facial height, and provide an important treatment modality for force management of the masticatory system.