Temporomandibular Joint (TMJ) disorders are conditions affecting the jaw joints and surrounding muscles and ligaments. It can be caused by trauma, an improper bite, arthritis or wear and tear. Common symptoms include jaw tenderness, headaches, earaches and facial pain. What are common TMJ symptoms?TMJ dysfunction is most common in those 20 to 40 years of age and is more common in women than in men. Symptoms include:- Jaw pain- Headaches- Earaches- Pain in the neck or shoulders- Difficulty openin