A retrospective epidemiologic study of 1420 maxillofacial traumatic cases

PURPOSE: In this clinical retrospective study, we aimed to offer the epidemiologic information about oral and maxillofacial trauma. METHODS: From 2005-2006, 1420 oral and maxillofacial traumatic cases were treated in Shanghai 9th Hospital affiliated to Shanghai JiaoTong University. Data regarding age, gender, cause of injury, pattern of fracture and associated systemic injuries were reviewed. RESULTS: The male to female ratio of 1420 cases was 3.24:1; and 36.22% of patients were aged between 20 and 30 years. The most common cause of injury was road traffic accident (42.07%); the zygoma (41.83%) and mandible (29.50%) were most frequent fracture sites; 43.6% of the cases were not treated or not treated properly in 3 weeks after trauma. CONCLUSIONS: Road traffic accident was the most common cause of hospitalized traumatic cases, and the zygoma and mandible were the susceptible sites to be fractured. Because of a high constituent ratio, we should makes much account of the dentofacial deformities resulted from delayed or inappropriate treatment applying to the oral and maxillofacial trauma cases.