METHODS: A retrospective study was carried out on patients, with teeth that were left in the line of mandibular fractures. Data was collected from patients who were treated at MEDUNSA during the period of January 2000-May 2004. These patients were divided into groups according to the location of fracture, method of stabilization, and the management of teeth within in the line of fracture. Patients were reviewed at two weeks and six weeks post operatively. Follow up radiographs were taken on both occasions. The patients all received a seven day antibiotic treatment (Amoxil 500mg, Flagyl 400mg). Patients with Penicillin allergies were excluded from the study. These patients were reviewed to determine how teeth located in the fracture line affected the healing process.
RESULTS:Teeth were present in 85% of the cases.The most common sites of teeth in the fracture line was the angle of the mandible (third molars)64%, parasymphysis area (premolars) 26%, and the symphysis area(10%). The most common complications that were found when teeth were left in the line of fracture,were infections(57%) and non-union of the fractures (43%).
CONCLUSION: Patients with mandibular fractures had a greater risk of complications when teeth were left in the line of mandibular fracture. The rate of complications were found to be far less in patients with a higher dental IQ and better oral hygiene. Posterior teeth (angle mandible) were more involved in complications, compared to teeth in the anterior region.