Strong tooth powder is very powerful. According to relevant data, normal teeth are light yellow. If there are plaques on the surface teeth or pigmentation caused by dysplasia, as well as long-term smoking and long-term drinking, you will be particularly yellow, and congenital yellow teeth will not be ruled out. If you want to whiten your teeth, you can choose appropriate methods, such as cold light whitening teeth, laser whitening teeth, ultrasonic cleaning teeth, etc., and the effect of whitening teeth is very good.