Tartar in the gums can be removed by ultrasonic scaling or it can be scraped off with a subgingival scraper. Tartar can be removed by ultrasonic scaling, or it can be scraped off with a subgingival scraper. Ultrasonic scaling generally utilizes the physical micro-vibration ability of ultrasonic waves, which acts directly on the surface of the teeth to clean the stains, tartar, and calculus on the surface of the teeth, and also to clean out localized food residues. This can achieve the effect of removing tartar and keeping the breath fresh in the mouth, as well as restoring the original color of the teeth. After an ultrasonic cleaning, patients must be careful to adjust their diet and avoid foods that are heavy in color.