Ten Symptoms of TMJ Disorders

2. Restricted Jaw Movement

In addition to pain, people with TMJ disorders find it difficult to move the jaw. Both the joint and the muscles stiffen, especially after long periods of inactivity, such as during sleep. Ordinary activities, such as eating and speaking, may become difficult due to muscle weakness and stiffness. Some people report an odd sensation or popping sound when the jaw moves out of its normal position. Less commonly, the jaw can become stuck in an open or closed-mouth position.