Clenching and grinding your teeth, whether during the day or at night, is the most common cause of jaw pain. Over time, the heightened muscle activity can lead to trigger points within the chewing muscles that may cause pain, soreness, limited mouth opening, and even headaches. Physiotherapy can provide effective treatment for temporomandibular dysfunction. Your therapist may use a combination of manual therapy, intra-oral massage, dry needling, and home exercises to decrease muscle tone and encourage relaxation. Try to avoid the forward head posture, common when in front of a computer, as it negatively affects the biomechanics of the jaw.