Hello, I don't know much about the situation in Guizhou, but if people in Guizhou generally have yellow teeth, it means that the drinking water in Guizhou may have high fluorine content, which leads to dental fluorosis. If it is dental fluorosis, simple tooth washing (tooth washing) can't wash off the yellow color of the teeth, because this yellow color is the color of the hard tissue itself, not the color attached to it. In this case, you need to bleach your teeth. If the economic conditions are good and there is demand in this respect, porcelain veneer repair can also be carried out in the repair department of District Stomatological Hospital. However, tooth bleaching is generally effective for deep dental fluorosis, and it can also partially bleach teeth. The final effect is yellow and white, which is very ugly.

If your condition is only due to smoking or drinking tea, which makes the tooth surface pigmentation, and your dental calculus and dental plaque are also very serious, then it is recommended that you have dental scaling treatment.

In our Xi 'an hospital, the cost of tooth cleaning is about 150-200 yuan. According to the consumption level, we can calculate the local expenses in Guizhou. Brush your teeth as often as possible. You only need 1-2 times a year.

I hope you get well soon!