Impacted supernumerary anterior teeth (mesiodens) usually are removed surgically with drug sedation and local anesthesia. After extraction of mesiodens, the wound are sutured and removable resin plate is then applied. In this operation, the postoperative bleeding and infection is likely to occur owing to postoperative accumulation of hematoma & seroma, psychologic stress and other contaminated factors (resin plate, poor oral hygiene, etc). So, the authors established the immediate rubber & iodoform gauze drainage into the sutured wound of mesiodens extraction for the prevention of postoperative bleeding and infection. The removable resin splint are not used because of the poor oral hygiene and economic factor. The results were more favorable without the postoperative blood oozing & wound infection in the dentistry (OMFS) of Wonju Christian Hospital.