Neurophysiological Examination for the Diagnosis of Orofacial Pain and Temporomandibular Disorders: A Literature Review.

Temporomandibular disorders (TMD) are a cluster of musculoskeletal conditions that involve the overall structures of jaw movements, including the temporomandibular joint, the masticatory muscles, and the surrounding structures. The etiology of TMD-related pain may be either central or peripheral, and differential diagnoses with other orofacial conditions are commonly required. Central pain etiology is associated with altered brain function linked to sensitization of pain-producing centers, whereas peripheral etiology of TMD is considered multifactorial, with some predisposing factors. Differentiating between neurological conditions and TMD requires a comprehensive clinical evaluation, as overlapping symptoms can complicate the diagnostic process. The aim of this review was to summarize the current literature about the role of neurophysiological examination in the management of orofacial pain and temporomandibular disorders to provide clear data that could be useful for clinical practice and for future clinical studies in this field.