The best way to remove calculus is to go to a professional dentist for scaling treatment. Scaling, professionally known as supragingival scaling, is a process that uses an ultrasonic scaling head to shock and shatter the firmly attached calculus on the surface of our teeth and in the gingival sulcus, and rinse it out with sterile water. Scaling is currently the most effective and fastest way to remove calculus in clinical practice. In addition to ultrasonic scaling, we can also consider using a manual scaler to clean tartar, which we call manual supragingival scaling, which can also achieve good results, but this method is relatively slow and is less used in clinical practice. For the formation of subgingival calculus in periodontitis, it is possible that the ultrasonic scaling head cannot reach the deeper part of the gingival sulcus and clean the subgingival calculus, so it is necessary to use a subgingival scraper to remove the deeper subgingival calculus manually, which is called subgingival scraping.