Today a young female patient stepped into the consultation room, I gave her a comprehensive dental examination, because it was already lunch break, the patient had many teeth, the operation time was longer, after discussion, she decided to come to work in the afternoon, when she came again, she told me that she repeatedly considered not wanting to treat, she thought it was better to have the original teeth, the teeth did not feel pain, although I patiently explained, the patient could not accept it, I was very helpless. Although I patiently explained, the patient could not accept it, I was very helpless, now I will give you the popularization, tooth decay, which is the worm tooth that everyone says, is a non-self-healing disease, once formed, it cannot heal itself, most of them continue to develop. With time, under the action of bacteria, the cavity will become bigger and deeper, and the symptoms will be aggravated gradually, and will be transformed into other diseases such as endodontic disease and even periapical disease. If cavity appears or has self-conscious symptoms, it should be checked and treated in hospital immediately.