Signs and symptoms of a TMJ disorder include: pain or tenderness of your jaw pain in one or both of the temporomandibular joints  aching pain in and around your ear difficulty chewing or pain while chewing aching facial pain locking of the joint, making it difficult to open or close your mouth   You may also hear a clicking sound or feel a grating sensation when you open your mouth or chew. However, if you don’t feel any pain and have a normal range of motion in your jaw, you probably don’t need treatment for TMJ.