Ms. Li, 38 years old, recently requested treatment for a sore and weak tooth bite. Ms. Li said she usually pay more attention to the teeth, and from time to time also go to the clinic to clean the teeth, just last month, washed once, very worried about whether the teeth are washed bad. Upon examination, Ms. Li’s teeth were found to be white and neat, with no cavities, but the gums were red and swollen, and there was more calculus under the gingiva, and the posterior teeth already had periodontal pockets 4-5mm deep, which meant that she suffered from periodontitis, and it was no wonder that she had weakness in biting objects. Since Ms. Lee has just had her teeth cleaned, why is there still so much calculus? It turns out that we usually say scaling with professional terminology called supragingival cleaning, can only remove the gums can be seen above the gums and under the gums of the shallow parts of the calculus, which is the most basic method of treatment of periodontitis, in other words, the treatment of periodontitis only scaling is far from being enough. Usually, after 1-2 weeks of scaling and review, the whole mouth is divided into four times (once a week) under local anesthesia with a special tool to thoroughly remove subgingival calculus, scraping out the periodontal pockets of granulation tissue, and flatten the root surface of the teeth, the vast majority of the affected teeth can be controlled, and a small portion of the condition of the extremely serious can be further surgical treatment. The treatment of periodontal disease is not an overnight thing, need to be planned and systematic, generally one month, three months, six months after the subgingival cleaning treatment should be reviewed, and then once a year. More importantly, patients need to do a good job of maintaining their personal oral hygiene, brushing their teeth with high quality after all three meals daily, and combining flossing and dental brushing to clean the spaces between teeth. The development of periodontal disease is a chronic process, early symptoms are not obvious and easy to be ignored, if you have bleeding gums, oral odor and other symptoms, please check and treat in a timely manner, the early treatment process is simple and effective, the middle and late periodontitis is often accompanied by tooth sensitivity, large gaps in the teeth, embedded food, periodontal abscesses, and even tooth loosening, shifting, etc., the efficacy of the treatment is not good. Many people have misconceptions about scaling: (a) scaling should not bleed. Dental calculus firmly attached to the gums around the surface of the teeth, rough tartar adhering to soft tartar breeding a large number of bacteria, resulting in gum congestion and edema, brushing will cause bleeding, so scaling is impossible not to bleed. (B) scaling caused by the gap between the teeth to increase. Suffer from periodontitis periodontium have different degrees of recession, swollen gums and calculus filled with intervals, once the removal of calculus, gum swelling after the gap is exposed, so the gap is not scaling wash out, but the periodontal disease itself. (C) scaling damage to the teeth. Scaling machine called ultrasonic scaler, the working principle is to work through the head of the ultrasonic vibration will be a large piece of calculus shock shock loose and remove, inappropriate use will make the surface of the teeth with scratches, scaling after the polishing treatment can solve this problem. Of course, it should also be noted that the scaling head must be strictly disinfected or use disposable instruments, otherwise it is very easy to infect diseases; in addition, patients with pacemakers are prohibited from using ultrasonic scaler scaling, patients with blood disorders and pregnant women should be used with caution. Generally speaking, adults every six months to check the oral cavity, many oral diseases, including periodontal disease in the early stage is no symptom, wait until uncomfortable when it is often too late.