Teeth need to be cleaned regularly. When smoking or drinking colored beverages regularly, exogenous pigments are easily deposited on the surface of teeth and affect the aesthetics, and the original color of teeth can be restored through scaling to improve the aesthetics. The food residue and soft scale deposited in the mouth can combine with saliva to form calculus, which will compress the gums and stimulate them to swell and bleed, while causing bad breath. Over time, it can cause resorption of alveolar bone, receding gums, root sensitivity, and in severe cases, loose teeth. Regular ultrasonic scaling and subgingival scraping can remove calculus, restore periodontal health, and help prolong the life of teeth. Some teeth are not easy to be detected when they form caries under the gingiva and covered by tartar. After ultrasonic scaling, filling can be given in time to avoid the expansion of caries.