Post-traumatic trigeminal neuropathic pain (PTNP) is "a unilateral or bilateral facial or oral pain following and caused by trauma to the trigeminal nerve(s), with other symptoms and/or clinical signs of trigeminal nerve dysfunction, and persisting or recurring for more than 3 months". PTNP may result from a major craniofacial/oral trauma or may be subsequent to relatively minor dental treatments such as teeth extractions, surgeries, root canal treatment. Patients suffering from this condition have a significantly reduced quality of life. Unfortunately, the currently available management modalities are associated with limited success and side effects. Repetitive transcranial magnetic stimulation (rTMS), which is a safe, non-invasive brain stimulation technique has emerged as a potential treatment for chronic pain. In this study, the purpose is to explore the potential of rTMS in treating the persistent neuropathic pain by providing individualized treatment for the sufferers.
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Changes in pain intensity
Timeframe: Prior to intervention at each session (baseline) to the end of that session (7 days after intervention).
Changes in perceptual distortion
Timeframe: Prior to intervention at each session (baseline) to the end of that session (7 days after intervention).