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An Open Label Study Assessing REN Treatment in Headache Management in Temporomandibular Disorders

Temporomandibular disorders (TMD) encompass a group of conditions involving the masticatory muscles, temporomandibular joint (TMJ), and associated structures. TMD is the most common cause of non-odontogenic orofacial pain and is the second most commonly occurring musculoskeletal condition. Up to 70% of the general population experiences signs and/or symptoms of TMD, with headache presenting as one of the most common manifestations. Recent studies highlight the comorbid presence of headache and TMD, hypothesizing that a relationship likely exists between the two conditions. Headache severity has also been associated with the number of TMD symptoms such that the prevalence of headache in TMD patients. A key mechanism underlying both TMD and migraine is the deficiency in Conditioned Pain Modulation (CPM), a descending inhibitory pathway that regulates pain processing. CPM impairment has been implicated in chronic pain states, including both migraine and TMD, contributing to their frequent co-occurrence and shared pathophysiology. Remote Electrical Neuromodulation (REN) is an emerging non-pharmacological intervention that exerts its analgesic effects by activating the CPM system, which is deficient in individuals with TMD and migraine. The Nerivio REN wearable device is FDA-cleared for acute and/or migraine prevention, in patients 8 years of age or older. Given the evidence linking CPM dysfunction to TMD pathogenesis, REN presents a promising therapeutic approach to addressing both the underlying pain dysregulation and symptom burden in affected patients.