What is a key physical sign of TMJ dysfunction during examination?

Tenderness around the jaw joint or muscles when palpated is a key physical sign of TMJ dysfunction. During a clinical examination, palpating the area around the temporomandibular joint and associated muscles can reveal areas of discomfort or pain, which are indicative of inflammation or tension in those structures. This tenderness may suggest that the muscles involved in jaw movement are strained or that there is an underlying dysfunction within the joint itself.

The presence of tenderness is essential for diagnosing TMJ disorders, as it helps healthcare providers ascertain the level of involvement of the muscles and joint in the overall dysfunction. It also gives clues about the various types of TMJ disorders, which can range from myofascial pain to joint disorders such as arthritis. Therefore, the identification of tenderness during palpation directly correlates with understanding the patient's condition and planning appropriate treatment strategies.

In contrast, other symptoms, while potentially related to TMJ issues, are not as definitive when it comes to diagnosing TMJ dysfunction.