With the popularization of medical knowledge, people are more and more concerned about “scaling”, which is called “scaling” in medical terminology. From the name “scaling”, we can see that it contains two meanings: “cleaning” and “treatment”. To “clean” means to remove tartar, pigment and other tartar from the surface of the teeth. “Treatment” means that it is a prerequisite for the treatment of periodontal disease. Scaling can reduce the inflammatory condition of gingivitis and periodontitis, but it cannot cure periodontal disease, and scaling alone cannot cure periodontal disease. In order to cure periodontal disease, systematic treatment must be performed after scaling. The main purpose of scaling is to prevent oral diseases, just as we often take a bath mainly for health, of course, healthy, beautiful and beautiful will come naturally. In many developed countries, dental cleaning has become a very popular routine oral health care, people go to their own dentist once or twice a year regularly to clean their teeth, in our country there are also some people began to develop this habit. And after the dental cleaning, the doctor will help you find so many problems, and the doctor will promptly carry out oral professional treatment to maintain oral health. Systematic scaling includes: ultrasonic scaling (sandblasting if necessary) and polishing Ultrasonic scaling is the use of ultrasonic instruments, through a kind of pointed instrument like a pen tip on the surface of the teeth slightly vibrate, so that the tartar attached to the teeth out of the teeth, but the removal of tobacco plaque, pigment more time-consuming, sensitive patients will also have soreness and other uncomfortable reactions. However, if the teeth are cleaned regularly, the soreness and other discomfort will be reduced. Sandblast cleaning is to use sandblast powder with certain impact to clean the pigment and smoke spots on the teeth after the ultrasonic waves have removed the large pieces of calculus, which is characterized by a comprehensive polishing of the tooth surface at the same time as cleaning, and can also clean the pigmented tartar in some small sockets. The sandblasting gun can not only remove the attachment on the tooth surface, but also play the role of grinding and polishing on the basis of ultrasonic scaling to prevent tartar re-attachment. After scaling, the teeth are routinely polished to give a smoother surface. Many small clinics do not polish the teeth after ultrasonic scaling, and the tooth surface is very rough, which makes it easier for pigmentation and tartar to gather. Some patients will have a strange and allergic feeling after scaling, feel that the gap between the teeth is wider, and feel that the teeth will loosen. In fact, the gap between teeth is filled with tartar, so it will feel very uncomfortable when it is suddenly removed, but if it is a healthy tooth, the strange feeling will disappear after a period of 3-5 days. If you feel that the gap between your teeth has become bigger, it means that you have periodontal disease and your gums have receded, giving the illusion that the gap has widened after removing the tartar. This is not caused by treatment, but by periodontal disease. If the tartar is not removed in time, the alveolar bone will resorb, leading to loosening and loss of teeth.