Clinically, there is a swelling process if a more traumatic tooth is extracted, such as an ambulatory wisdom tooth, and the swelling starts after the tooth is extracted, but it is not obvious after the tooth is extracted, and the process of swelling is from peak to decrease. It reaches its peak about 2-3 days after the extraction and then gradually subsides, with the swelling completely dissipating in about 7-10 days. Not all tooth extractions result in swelling, but if the extraction of a simpler tooth is faster and less traumatic, such as the extraction of a third degree loose tooth or a baby tooth during the period of milk-permanent alternation, there will not be any significant swelling during the extraction of this type of tooth.