A good diagnosis requires an understanding of the symptoms of TM dysfunction and associated head pain, and a thorough clinical examination. In order to understand the sympotoms and their severity, as well as the factors that must be included in a differential diagnosis, it is necessary to understand how the TMJ and the central nervous system (CNS) interact in response to noxious stimuli of the TMJ. Headaches are one of the more common symptoms of TMD but ar also common occurrences for other reasons. Differential diagnosis of headaches of TMJ and non-TMJ origin is critical for correct treatment and referral of patients for treatment if the headaches are not related to TMD.
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