Sore teeth when biting things need to be desensitized teeth treatment, dental repair, serious cases need to be treated with nerve treatment may be relieved. 1. Sore teeth when biting things mainly occurs in the teeth excessive wear produced by the sensitivity of the symptoms, excessive damage to the enamel dentin exposure caused by the symptoms, you can use desensitization gel topical application can be relieved. The use of fluoride or sodium fluoride, in the affected area of the tooth to be coated, the main purpose is to close the dentin tubules, isolated from the outside world on the dental nerve stimulation. 2. Teeth due to caries caused by defects, can also cause teeth to bite things sore, need to repair the tooth defects in time to avoid food impaction can relieve its symptoms. 3. Soreness caused by cracked teeth or receding gums requires nerve treatment and root canal therapy, and in severe cases, the affected teeth need to be extracted for effective relief. If the above symptoms of tooth sensitivity occur, it is recommended to consult a doctor in time for treatment.