When the appliance is first installed, it may feel like quite a mouthful! But that feeling should subside quickly as the patient gets used to feeling the appliance in the mouth. A Herbst Appliance should never cause pain, but it may cause some tension or tenderness in the muscles of the jaw. If necessary, OTC pain relievers can be taken to increase comfort.
The insides of the cheeks where the appliance touches may become irritated at first while the tissue is getting used to the appliance. It won’t take long though before the soft tissue inside the cheeks becomes accustomed to the appliance. If the inner tissues of the cheeks become irritated, a saltwater rinse can help them feel better.
If sleeping on the side causes pain or irritation in the the cheeks from the pressure of a pillow, try back sleeping. Experimenting with pillows under the knees and around the body can help people who are not natural back sleepers.