After tooth extraction, a blood clot usually forms in the tooth socket. This is the first step in the natural healing process and lays the foundation for your body to heal the extraction site. Since the blood clot is so important to the healing process your dentist will ask you to bite down on a gauze pad to help stop the bleeding and form a stable clot. In some cases, your dentist can place a few stitches to close the gum edges around the extraction site; stitches will help form and stabilise the clot too. The stitches are usually self-dissolving; but sometimes non resorbable stitches will be used. Ask your dentist if you have to come back to have the stitches removed.
In some rare cases, the blood clot in the socket can break loose, causing the bone to be exposed. This is a painful condition referred to as dry socket, and usually requires the dentist to cover the socket with a sedative dressing for a few days while a new clot forms. An extraction wound that has dry socket will not only be painful it will also take longer to heal. This is precisely why it is so critical to care for an extraction site properly after tooth removal.