The best time to remove the stitches after tooth extraction is about 5-7 days, because the mucous membrane of the oral cavity is very strong healing ability, 10 days to remove the stitches is also possible. However, because the thread is a foreign body, long-term presence in the oral cavity is prone to food debris gathered on it, which can easily lead to further infection of the extraction socket, so if time permits, it is still recommended to remove the thread in accordance with the normal time. 10 days after the removal of the suture, the patient must protect their oral hygiene, you can use mouthwash with the use of mouthwash, which has the effect of bactericidal, which can prevent the infection of extraction sockets. After removing the sutures, do not use the extraction side for chewing immediately, it is best to wait until our perforation hole healing before normal chewing. The entire healing period of the extraction socket is about 3 months, within 3 months there may be food debris into our extraction socket, it is not recommended that the patient to pick out, rinse or normal brushing can be done.