If you ask the doctor about the application of non-absorbable suture, such as ordinary suture mousse thread, then it is recommended to remove the suture, and under normal circumstances, the suture removal can be carried out 1 week after tooth extraction. But if clinically, the suture used in tooth extraction is absorbable, then in most cases there is no need to remove the suture, waiting for the natural absorption of the suture can be, of course, in the clinical work, absorbable sutures are divided into a variety of absorption time is shorter, for example, collagen-based sutures, this type of suture with the healing of the wound will gradually be absorbed, there is no need to remove, of course, there are also a number of synthetic Of course, there are also some synthetic absorbable sutures, which may take more than one month to be absorbed in the oral cavity, and this kind of suture can be considered to be removed in a week or so if the patient’s foreign body sensation is obvious. Even if the non-absorbable mousse line, in clinical observation, in most cases with the epithelial shedding and chewing movement gradually fall off, generally cause foreign body infection is not particularly high, of course, if the patient repeatedly lick the site, there is obvious discomfort, for this kind of suture, or removal of the better.