Pearl powder brushing teeth can not make teeth white, pearl powder in the process of brushing teeth only play the role of friction agent, only part of the surface of the teeth of the soft dirt, food debris to remove clean, but pearl powder can not replace toothpaste to brush teeth, at the same time, pearl powder it is not able to penetrate into the interior of the dentin to neutralize the pigmentation of the interior of the dentin to make the teeth whitened, so the pearl powder brushing teeth does not have a whitening effect of the teeth. The most important thing to remember is that the pearl powder has no effect on whitening the teeth. If you want to make your teeth white, such as teeth are exogenous coloring, such as black spots and tea stains on the teeth look unattractive, you can go to the hospital for ultrasonic cleaning treatment, that is to say, to go to the scaling treatment, which can remove the black spots and pigments on the teeth. If the color of the teeth itself is very yellow, the pigment of the teeth is deposited on the dentin, or even tetracycline and fluorosis, in this case, cold light whitening treatment should be carried out in order to make the teeth whiter.