The methods to remove tartar and calculus are: 1.The fastest way to use ultrasonic scaling, the high frequency vibration of ultrasonic scaling device can loosen the large pieces of calculus and soft scale on the tooth surface and discharge them to the outside of the mouth with the mouthwash, the fine calculus located in the gingival sulcus can be removed slowly by manual instruments, while trimming the root surface and keeping it polished to form new tissues. 2.The pigment deposited in the tooth sulcus point gap and other places can be removed completely by sandblasting 3.Brush and rinse your teeth in time after meals every day, and use dental floss, interdental brushes, toothpicks and flushers to remove the food residue left on the adjacent surfaces and avoid the formation of calculus again.