Isometric jaw opening

Isometric jaw exercises are particularly useful for patients with temporomandibular joint dysfunction syndrome. These exercises are performed by applying resistance with an open or loosely fisted hand. In the isometric jaw opening exercise, the patient begins with her mouth open about an inch. The resistance and muscle contraction are held for 5 to 10 seconds before relaxing. This is repeated five times per session. Exercises can be performed with moderate resistance applied several sessions per day, or with maximum resistance one session per day.