Dental scaling removes tartar. 1. Tartar is tightly attached around the teeth, and it is generally difficult to remove it through normal brushing. At present, dental clinics use ultrasonic scaler to remove calculus, ultrasonic scaler is to remove tartar and plaque through the high-frequency oscillation of ultrasonic waves, with high efficiency, high quality, time-saving and labor-saving features. 2. Some special people should not use ultrasonic scaler, such as hepatitis, tuberculosis, AIDS, leukemia, pernicious anemia, severe diabetes. As the surface of dental calculus is easily covered with plaque, it is easy to cause periodontal disease. Therefore, dental calculus patients should go to the medical institution in time, under the guidance of the doctor for standardized treatment.