The anesthetic effect after tooth extraction will generally wear off in about two hours, depending on the individual’s physical condition and the amount of anesthetic used. The anesthetic effect after tooth extraction will gradually subside after one hour, and generally disappear in about two hours. However, the specific time of fading is related to the dosage of anesthesia and individual physique, and the anesthetic effect can reach up to three hours. Due to the anesthetic effect, patients are advised not to eat within three hours to prevent biting. On the same day, food should be warm and soft, fluid or semi-fluid is the best. If the anesthetic effect fails to subside, it is considered that it may be caused by damage to the nerve during tooth extraction, and the patient should consult an oral specialist for examination and treatment as prescribed by the doctor.