When a crunching or crackling sound is audible in the ears, it is likely caused by dysfunction of the temporomandibular joint. In order to address this concern, the underlying cause of the crunching sound must first be taken care of. The best way to find the most effective treatment is by visiting a dentist who specializes in treating temporomandibular joint disorders. The dentist may utilize any one of several different modalities, including oral splints and mouth guards, or they may even prescribe physical therapy to help stretch the jaw muscles and relieve tension on the temporomandibular joint. Gentle stretches and strengthening exercises can improve TMJ health, reducing symptoms.