Methods of removing calculus on teeth mainly include brushing, ultrasonic scaling and systematic periodontal treatment. 1. Tooth brushing: If the calculus on the teeth has not calcified for a short period of time and the calculus is small, you can use toothpaste with high cleaning power to brush your teeth to remove the calculus on the teeth. 2. Ultrasonic scaling: If the calculus is more serious, ultrasonic scaling can be used to remove the calculus through the high-frequency vibration of ultrasonic waves. 3. Systematic periodontal treatment: If calculus has been attached under the gums and the scope is large, it is necessary to carry out systematic periodontal treatment, including subgingival scraping, root planing, periodontal surgical treatment and so on. When dental calculus occurs, you should consult a doctor in time, according to the specific situation of dental calculus, under the guidance of the doctor to carry out standardized treatment.