In the clinic, there are many kinds of diseases, can cause drinking water tooth pain this symptom, the more common are the following: 1, dentin sensitivity, when the enamel on the surface of the teeth after grinding, there will be dentin sensitivity this symptom. The main performance is hot and cold stimulation, pain. At this time, the enamel on the surface of the tooth is removed, exposing the dentin, and the dentin itself is more sensitive to hot and cold stimulation will appear pain; 2, dental caries, when the caries development to the caries and deep caries, hot and cold stimulation will stimulate the dentin superficial and middle layer, there will be a more pronounced sense of pain; 3, the teeth occurred in pulpitis, in the occurrence of pulpitis, hot and cold water stimulation, the teeth will be particularly severe pain, and persistent pain, the teeth will be very painful. When pulpitis occurs, after stimulation with hot and cold water, the tooth pain will be particularly severe and last for a period of time, and can also radically cause pain on the same side of the head and face. At this time, the pulp of the tooth has been inflamed, the need for root canal treatment.