There is usually no such thing as the best time to extract a tooth, and patients can choose according to their own circumstances. However, if a time must be determined, it is recommended that the tooth be extracted in the morning. 1. If the tooth is extracted in the morning, there will be enough observation time after the extraction, and if there is discomfort or bleeding, the patient can consult the doctor in the afternoon for treatment, which is relatively safe. It should be noted that patients should eat breakfast before extraction, not on an empty stomach, to avoid fainting after anesthesia. 2. For some special circumstances, also need to pay attention. For example, women dealing with physiological cycle, prohibit tooth extraction; patients in the period of oral inflammation, need to cure the inflammation before extraction; patients with chronic diseases not controlled, such as hypertension, heart disease, diabetes, patients, prohibit tooth extraction and so on. Do not brush your teeth or rinse your mouth within 24 hours after tooth extraction, eat soft food or liquid food, and do not eat stimulating food to prevent wound infection. Patients are advised to go to regular hospitals and ask professional doctors to perform tooth extraction to ensure the safety of the procedure.