Teeth wear acid pain can not eat, may be a long time on the teeth wear, the outer layer of enamel caused by damage, dentin exposed, meet the outside world of cold and acid and other stimuli, through the dentin tubules quickly conduct to the dentin, caused by acid pain can not eat. It can be dealt with by brushing teeth with warm water and rinsing mouth, eating warm food and brushing teeth with desensitizing toothpaste. 1. Warm water brushing and rinsing: As the pulp nerve is very sensitive to temperature, especially when the teeth are worn and the dentin is exposed, once stimulated by cold, it will lead to toothache, so brushing and rinsing with warm water can avoid toothache. 2. Eating should be warm: Diet should be warm, do not eat too acidic, too sweet food. If you eat too cold, too hot and spicy food, it will also cause toothache. 3. Brush your teeth with desensitizing toothpaste: desensitizing toothpaste contains fluorine, which prevents dephosphorylation and decalcification of the teeth in an acidic environment, and has an antacid and pain-relieving effect. Teeth wear acid pain can not eat, it is recommended that timely medical treatment, under the guidance of the physician for targeted treatment.