In the relaxed state, the upper and lower teeth are separated. The state of maxillofacial relaxation, also known as resting jaw position, when the muscles of the maxillofacial region is in the most relaxed state, the upper and lower teeth are separated, and there is a wedge-shaped gap between the two, which is about 2~4mm, known as the resting jaw gap. Under normal circumstances, people only chewing and speech when the upper and lower teeth will have contact, the rest of the time most of the relaxed state, which is conducive to the health of the stomatognathic system. However, some people have clenched teeth during unconsciousness or sleep, or have teeth grinding disorder, it is recommended to use jaw cushion treatment to protect the teeth and relax the muscles. Patients with discomfort are advised to seek medical attention as early as possible and have regular oral checkups every 6 to 12 months.