Plaque on the teeth is colorless, the said black plaque is often a mixture of pigment, inorganic salts, plaque on the surface of the teeth tartar or decayed tooth tissue.
1. Tartar: plaque is colorless, generally use a special stain to make plaque color, black plaque is often a mixture of inorganic salts, plaque, pigment attached to the surface of the teeth tartar, clinical removal of tartar and plaque is generally removed by scaling.
2. Carious dental tissue: plaque attached to the tooth surface, the long-term existence of the enamel will be destroyed, the formation of cavities, dental tissue corruption will gradually form black substances, from the appearance of black, so you need to remove plaque, in order to prevent the caries continue to deepen.
Regular oral examination is recommended so that problems can be dealt with in a timely manner.