Sutures are frequently, but not always, placed in the area of surgery to minimize post-operative bleeding and to help healing. Sometimes they become dislodged; this is no cause for alarm. Just remove the suture form your mouth if it is loose and discard it. In most types of surgery in the mouth, we will use dissolving sutures; this saves the patient the trouble of having sutures removed. These dissolving sutures will usually get loose and fall out within a week, which is a sign that the tissue underneath is most likely healing normally and that the sutures have performed their function and are no longer needed. There is no need for alarm when this happens. If non-dissolving sutures are required for your procedure, their removal typically requires no anesthesia or needles. It takes only a minute or so, and there is minimal if any discomfort associated with this procedure. So its really nothing to worry about.
Mouthwash may contribute to extrinsic stain reduction when either carbamide peroxide or hydrogen peroxide are among the active ingredients. Products that rely on carbamide peroxide typically contain 10 percent carbamide peroxide and may be dispensed by dentists to their patients for use at home. 11 Mouthwashes that claim to whiten teeth also may contain to 2 percent hydrogen peroxide. 1 One study found that 12 weeks' use of mouthwash containing hydrogen peroxide in this concentration range achieved similar color alteration as that achieved by 2 weeks' use of 10 percent carbamide peroxide whitening gel. 12