If there is a popping sound in the teeth and jaws when opening and closing the mouth or chewing, it indicates the development of temporomandibular joint disorder syndrome, which is caused by trauma, inflammation or long-term chewing of hard food, resulting in the disorder of the temporomandibular joint function and the symptoms of joint popping. jaw joint at the end of mouth opening or when biting hard objects. If this happens, first of all, you should avoid opening your mouth wide and chewing tough food, and keep the joint fully rested. You can also apply hot towels to the joint in front of the ear screen to promote blood circulation in the joint area, so that the inflammation and congestion in the TMJ area can be absorbed quickly. If conditions allow, you can also go to the rehabilitation physiotherapy department of the hospital for local ultrashort wave physiotherapy of the TMJ, which also has a good effect on the absorption of the inflammation of the TMJ.