Do teeth turn white?

Teeth cleaning is to remove dirt from teeth, such as plaque or pigment, and restore the original color of the teeth. If there is some pigment on the teeth, such as smoking, tea, coffee drinking patients, their teeth will turn white after cleaning. But if the patient's teeth are yellow, or teeth are fluorosis teeth or tetracycline teeth, such a situation after cleaning teeth will not turn white, just like washing clothes, black clothes washed clean, or black clothes, and will not become white clothes, is the same reason.