What disease is the tooth black as a whole?

Teeth blackening may be due to long-term bacterial growth of dental plaque, corrosion of teeth will form black, may also be tooth trauma and excessive bleeding will form black, need to go to the regular hospital stomatology department for examination. Simple only teeth blackening, no pain, need to wear out the black part, and then fill. If the teeth show pain, you can first control symptoms, and then the black part of the grinding out, and then resin filling. Do not drink or eat for two hours after treatment and do not brush your teeth for 24 hours.