Cleaning tartar is done using a scaling appliance to scrape the tartar away from the surface of the teeth through a specialized technique using a machine or the power of the wrist. 1. Ultrasonic cleaning. Ultrasonic cleaning is the use of ultrasonic vibration to remove tartar from the surface of the teeth by using the working head, which is parallel to the surface of the teeth or less than 15 degrees, and moves back and forth to shake off the tartar underneath the tartar in contact with the tartar, and then polishes the teeth after the cleaning is completed. 2. Hand instrument cleaning. It is the use of hand instruments, according to different teeth to choose a different scaler to use the power of the wrist to scrape away the tartar, the blade of the knife and the surface of the teeth was 80 degrees wrist force, from the direction of the jaw to scrape away the tartar. After the tartar cleaning is completed, it is necessary to use a probe to check whether there is a missing area, if found to be missing need to be scraped again.