The aim of the study is to examine masseter and temporal muscle sections with Ultrasonography in this individuals depending on the origin of Temporomandibular Disorders.

Multidirectional evaluations are needed to examine the symptoms of Temporomandibular Disorders (TMD). Physical examination, questionnaires towards symptoms, and imaging techniques provide objective data on pathology. The chewing muscles should also be evaluated in this way and the approaches to be followed in subsequent processes should be determined. It is known that muscle sections are changed in TMD, which develops due to muscle disorders. However, regardless of the origin of TMD chewing muscles are affected depending on the condition.

Inclusion Criteria:

• Having a temporomandibular disorder,
• Individuals who suited Temporomandibular Disorders/ Research Diagnostic Criteria classification

Exclusion Criteria:

• Pregnant,
• Canser,
• Trauma,
• Neurologic disorder,
• Infection,
• Trigeminal or postherpatic neuralgia