Customized anterior guidance for occlusal devices: classification and rationale.

Occlusal devices can protect the dentition from attrition and are commonly prescribed for the treatment of myogenous orofacial pain. The occlusal scheme of the device controls the forces on teeth during mandibular closure and excursions. Smooth anterior guidance from anterior teeth contact and posterior teeth disclusion has been described as a component of a therapeutic occlusion. Clinical research on the effects of occlusal devices is extensive, but documentation about the actual occlusion studied is lacking. A classification of anterior guidance design for occlusal devices and the rationale for optimum force distribution is presented. This classification can guide clinicians as to the criteria for proper occlusal device fabrication and improve dental research.