Baking soda should not be used regularly for brushing, and it is even better not to use it for brushing. Because baking soda is mainly used for cleaning kitchen utensils at home, using it in the mouth will not only have an irritating effect on the mucous membranes of the mouth, but will also lead to a lot of scratches on the surface of the teeth. If the teeth are no longer smooth, it will be easier for plaque to remain on the surface of the teeth, caries or even plaque, calculus production, leading to the aggravation of chronic periodontitis. If patients find that there is an accumulation of calculus in the mouth, they can go to the stomatology department for routine dental cleaning, through the way of cleaning and polishing, can be cleaned of calculus at the same time polishing the surface of the teeth, to avoid further accumulation of food, aggravate the production of calculus. Once you brush with baking soda, the scratches usually do not go away, and the dentist can only reduce the scratches by polishing them, but they will not go away, so the patient should not use baking soda to brush their teeth.