Foreign bodies may be embedded in the oral cavity either by traumatic injury or iatrogenically. Cases in which a foreign body embedded in the oral cavity due to self-inflictions are uncommon and rarely reported. The discovery of foreign bodies in the teeth is often accidental and is a special situation. Detailed case history, clinical and radiographic examinations are essential to come to a conclusion about the size, nature, location of the foreign body and the difficulty concerned in its retrieval. Such an object may act as a possible source of infection and lead to complications. This case report presented a accidental impaction of self-inflicted foreign body in the form of wire in the maxillary left posterior region.