Children can wash their teeth, children’s oral hygiene cleaning is not timely or the use of toothbrushes in an incorrect way, the mouth retains a large number of food debris, soft scale, and saliva combined to form calculus, so that the tooth surface becomes yellowish brown, affecting the aesthetic, sometimes can cause bad breath. As calculus is not formed for a long time, and the combination with the surface of the teeth is not close, you can use manual instruments to scrape, using low-speed handpiece on the silicone rubber wheel dipped in abrasive paste to polish, so that the teeth to restore the white, bright, every 16-12 months can be regular oral examination, according to the situation of the choice of scaling or other treatments.