Teeth often have dark embroidery, indicating that there are deposits of pigment on the surface of the teeth. It is important to go to the hospital for ultrasonic cleaning, which is commonly known as scaling. Using the ultrasonic cleaning method, can completely remove the pigmentation on the teeth, smoke plaque, tea stains, tartar, so that the teeth become white and bright. In addition, patients should pay special attention to the maintenance of oral hygiene on a daily basis, and carefully brush and rinse their teeth to avoid pigmentation from being deposited on the tooth surface again. There is black embroidery on the teeth, if also accompanied by the lack of dental tissue indicates that suffering from caries. Patients with caries should be timely treatment of dental caries, to remove the infected black hard tissue of the tooth body thoroughly, and then fill the cavity with dental filling materials. At present, there are two main types of filling materials commonly used in clinical practice, the first type is glass ionomer material, and the second type is composite resin material. Adults are usually recommended to use composite resin to fill dental defects.