Which headache disorder is listed as a potential mimic of TMD?

• A. Tension-type headache
• B. Migraine with aura
• C. Cluster headache
• D. Hemicrania continua

Answer: (C)

Pain in the jaw and face can come from many sources, and some headaches show up in areas that people commonly associate with TMJ problems. Cluster headache is a prime example because the pain is often felt around the eye, temple, and upper jaw, and it can be so intense that people clench or guard the jaw during an attack. In addition, cluster headaches bring dramatic autonomic signs such as tearing, nasal congestion, drooping eyelid, and sweating on the face. These features can mimic dental or TMJ issues and lead clinicians to think of a jaw disorder first, especially when a patient presents with unilateral facial pain or jaw tenderness.

What makes cluster headache stand out as a mimic is its combination of severe unilateral facial/eye pain with parasympathetic symptoms and a circadian pattern, which can be mistaken for a TMJ-related syndrome or dental pain if the clinician is focusing on jaw function rather than headache characteristics. Other headaches, like tension-type or migraine with aura, tend to have different pain quality, locations, and accompanying symptoms that are less likely to present primarily as jaw or facial pain. Hemicrania continua is a continuous unilateral headache but lacks the distinct episodic, intensely sharp attacks with autonomic features that can resemble a TMJ problem.