The gap between two teeth especially painful may be due to food impaction, tooth decay, food irritation and other reasons. 1. Food impaction: if the patient is eating food in the teeth caused by impaction, may also cause local gum tissue swelling and pain, it is recommended that the patient can use a toothpick or dental floss to remove the food in a timely manner. If you can’t remove it by yourself, you need to go to the hospital and ask the doctor to deal with it. 2. Dental caries: patients who do not pay attention to oral hygiene or love sweets, may also cause local dental caries, the nerve will be stimulated to a certain extent, the emergence of tooth pain, if not treated in a timely manner, it may cause pulp infection. 3. Food stimulation: patients who eat too hot, too cold, spicy food, it may stimulate the gums, sensitivity pain, so patients with special pain between the teeth may be due to food stimulation. The gap between the two teeth especially painful may also be other reasons, should go to the hospital in a timely manner, for appropriate treatment and treatment, and in the recovery process to develop the habit of brushing teeth and rinsing the mouth.