It is very difficult for patients to pick it off themselves, as calculus is generally very hard on the surface of the teeth, and especially harmful calculus is attached to the contact area between the gums and the teeth, so it is usually impossible to completely and completely clean the calculus by brushing, flossing, gap brushing or even the hot water flossing. The best way to remove calculus is to go to a dentist and have it cleaned out by scaling, also known as supragingival scaling. Supragingival scaling is the most economical and effective way to remove calculus by means of ultrasonic shock, which is performed by a professional practitioner.