In most cases, there is no need to take anti-inflammatory injections for tooth extraction, if it is a relatively simple tooth extraction, such as the extraction of milk teeth or the extraction of less traumatic teeth, theoretically, it is possible to remove the tooth without applying anti-inflammatory drugs, as long as close observation of the wound healing situation can be done, but clinically, in the actual work of the tooth extraction, most of the cases are due to the tooth itself appeared in the inflammation, such as apical inflammation, wisdom tooth peri-coronitis and other diseases. The most important thing to remember is that the tooth is not in a position to be removed, but it can be removed if the wound is not healed. There are also cases where the extraction of teeth is more traumatic and takes a longer time, such as the extraction of ambulatory blocked teeth, which involves incision, flap, suture, etc. For this type of tooth extraction, it is indeed recommended to apply anti-inflammatory medication to prevent infection, but oral medication can achieve a better clinical effect, and there is no need to take anti-inflammatory injections.