If the patient feels a dull/achy pain, where is the pain coming from?

• A. Nerve
• B. Joint
• C. Muscle
• D. Vascular/Migrane

Answer: (C)

Pain quality helps localize the source of TMD pain. A dull, aching sensation in the jaw usually points to a muscle (myofascial) origin. When jaw muscles like the masseter or temporalis are overworked, fatigued, or tense from bruxism or stress, they develop trigger points and diffuse aching pain that is felt more in the muscles than as a sharp joint or nerve symptom. This type of pain tends to be pressive, widespread around the jaw, and worsens with chewing or palpation of the facial muscles.

In contrast, nerve-related pain tends to be sharp, shooting, or electric in quality and follows a nerve distribution. Joint (intra-articular) pain is often linked to signs like joint noises, restricted movement, or joint-specific tenderness rather than a diffuse muscle ache. Vascular or migraine-related pain typically presents as headaches with associated features such as pulsating quality, nausea, or photophobia, not a localized dull jaw ache.

So, the dull/achy jaw pain most likely comes from muscle sources—the myofascial system—rather than the nerve, the joint itself, or a vascular/migraine origin.