If you want to remove the black spots on teeth, you should first clarify the causes of black spots on teeth, there are mainly the following cases: 1, if patients usually smoke, like and strong tea or eat similar chocolate and other dark-colored food, usually do not pay attention to oral hygiene, consider that it is caused by tooth pigmentation. You can brush your teeth with baking soda toothpaste every morning and evening, if the effect is not obvious, you can go to scaling. 2, caries, black spots are manifested as infiltration to the inside of teeth, usually when eating cold, hot, sour, sweet food, teeth will have painful and sensitive discomfort, if it is shallow caries with resin filling can be. If it is bad to the nerve of the tooth, it is necessary to extract the pulp and do root canal treatment. When you brush your teeth, pay attention to the gaps of your teeth, and eat less sweet food. 3.Calcification of plaque into calculus, if the calculus is not cleaned for a long time, it will lead to black spots on teeth, which can be improved by scaling and sandblasting.