Oral surgeons sometimes encounter patients with foreign bodies in their jaws which require dental treatment. Occasionally it is difficult to extract them.Twenty-eight patients with foreign bodies requiring dental treatment were admitted to our department of Oral and Maxillofacial Surgery over about a 4-year period and may be summaried as follows:1. Most patients were in their 20s or 30s, and foreign bodies were less common amongthe elderly. Most upper jaw foreign bodies were in women, while the incidence of foreign bodies in the lower jaw was more common in men.2. Most foreign bodies in the maxilla were located in the first molar, and all foreign bodies were in the region of the third molar in the mandible.3. More cases occurred on the right side of the maxilla than the left, but there was no difference in lower jaw laterality.4. As for type of foreign body, most were the radixis of the tooth in both jaws, a few were filling material of the dental canal, the whole body of the tooth or material from dental implants.5. The initial treatment in almost all patients with foreign bodies was no treatment on the upper jaw and antibiotics were given to only 4 patients.6. Fifteen, about 70%, patients visited the hospital within 7 days after their accident and the longest interval before treatment was one patient who come to the clinic 6 years after his accident. All patients were operated on within 5 days after their accident when the foreign body was in the lower jaw.7. Twelve patients were operated on within 7 days for foreign bodies in the upper jaw and 5 patients within 3 days for foreign bodies in the lower jaw after first seeking consultation.8. The surgical technique in most cases of maxillary foreign bodies was enlargement of the wound and extraction of the foreign body, in the lower jaw, an incision was made and soft tissues dissected from the lingual side to exposed and extract the foreign body.