If there are black spots on the surface of the teeth that can’t be brushed off, it is considered to be pigmentation or dental caries, which can be solved by scaling, whitening or treatment. 1. Pigmentation: black spots on the surface of the teeth can’t be brushed off, mostly consider pigmentation, daily diet often eat pigmented food, a lot of smoking, do not pay attention to oral hygiene, etc., pigmentation slowly deposited on the surface of the teeth is not cleaned up in a timely manner, the surface of the teeth over time will form black spots. At this time, you can go to the dental hospital first scaling, scaling can not remove the black spots on the surface of the teeth, and then use cold light whitening and other technologies to remove the black spots on the teeth. 2. Dental caries: black spots on the surface of the teeth can not be brushed off may be caries, corruption, necrosis of the tooth tissue is dark brown, over time looks like black spots. Caries should be treated in time, usually through the filling way to solve the problem. Found that the surface of the teeth have black spots can not be brushed off should go to the hospital in a timely manner, after the examination to determine the cause of the disease and then targeted treatment, so that the teeth back to normal.