Tartar is a calculus-like substance that adheres to the surface of the teeth and is made up of a mixture of bacteria, food debris, and substances in saliva. Due to the presence of bacteria, the tartar itself can cause bad taste in the mouth. This is because the bacteria in calculus produce odorous gases. Likewise, once the calculus grows further and adheres to the gums in large quantities for a long time, it will cause the corresponding gum recession and cause a more serious periodontal disease, which starts as gingivitis and then gradually develops into periodontitis, which is the primary risk factor for total tooth loss in middle-aged and elderly people. Therefore, calculus is also the primary initiating factor for tooth loss in middle-aged and elderly people. Once calculus appears, it is recommended that patients go to a professional dental institution as soon as possible to have their teeth cleaned for calculus, which is what we usually call scaling treatment. Scaling can be a good way to remove calculus. We generally recommend going to a professional dentistry department once a year for scaling treatment.