What causes yellowing teeth?

1. High degree of mineralization of tooth enamel: The higher the degree of mineralization of tooth enamel, the higher the transparency, the more obvious the color of dentin, and the teeth will easily appear yellow. This condition is very common and completely healthy and requires no special treatment.

2. Exogenous coloring: eating some dyeing foods. For example: if you often drink tea and coffee, but do not brush your teeth in time, the color will settle on the tooth surface; or if you smoke for a long time, the nicotine tar and other substances in tobacco will adhere to the teeth and be difficult to clean.

3. Endogenous staining: During the embryonic period or during tooth development, taking tetracycline drugs destroys the internal structure of the teeth, causing teeth to be stained, and the tooth surface is not smooth enough. The enamel itself is well mineralized, revealing the ivory yellow color of the original inner dentin. In addition, diseases such as caries, dental trauma, and pulp necrosis can also affect the color of teeth.

In addition, parents will find out why the child's new permanent teeth are much yellower than the deciduous teeth during the teething period. Is it cavities? No. Because the enamel of deciduous teeth is not as densely developed as that of permanent teeth, its enamel is not as translucent as that of permanent teeth. During the replacement process of permanent teeth, you will find that the natural tooth color of permanent teeth appears to be a bit yellower. it `s just normal.