Precision occlusal splints and the diagnosis of occlusal problems in myogenous orofacial pain patients

Myogenous orofacial pain is a common nondental pain. There is an unresolved debate on the etiology of this problem. Research has shown that occlusal interferences affect masticatory muscle comfort, coordination, and function. Resolution of these problems with precise occlusal correction indicates that dental occlusion is a causative or contributory factor in myogenous orofacial pain. However, some studies fail to confirm this and instead conclude that occlusion is unrelated to masticatory muscle pain or dysfunction. An explanation for this discrepancy in findings is that these nonconfirmatory studies had not documented any pretreatment or corrected occlusion. Diagnostic casts mounted in centric relation and precision occlusal splints are accurate modalities to diagnose the occlusal problem and its correction in a patient with myogenous orofacial pain. Computerized digital occlusal analysis provides objective data of occlusal contact time and force to accurately assess diagnosis and treatment. The rationale and requirements for proper occlusal splint fabrication with a verified therapeutic occlusion are presented.