Identify the type of TMJ disorder that involves discomfort or pain in the muscles that control jaw function, with myofascial pain being the most common form.

• A. Muscle
• B. Bone
• C. Nerve
• D. Ligament

Answer: (A)

Focusing on muscular involvement is key here. The described discomfort or pain arises from the muscles that move the jaw—the masseter, temporalis, and pterygoid muscles. When these jaw muscles develop pain and tight bands or trigger points, it’s called myofascial pain, which is the most common form of a TMJ disorder. This distinguishes it from bone-related issues in the joint, nerve-originating pain such as trigeminal neuralgia, or ligament injuries around the joint. Treatment typically targets the muscles and fascia with jaw exercises, physical therapy, heat, anti-inflammatory meds, and sometimes muscle relaxants or splints to reduce strain.