Abstract
Background and Objectives: Mandibular Fractures constitute a Substantial Proportion of cases of Facial Trauma. In this study we present the Frequency of various types of mandibular fractures regarding anatomic site and their etiology
Materials and Methods: The medical Records and radiographs of patients who were hospitalized at Imam Khomeini hospital in Tabriz for mandibular fracture over a 5 year period were retrospectively reviewed. Age, sex, anatomic site of fracture, number of fracture lines and its causes were recorded
Results: From 1996 to 2001, 210 patients with 336 fracture line in mandible were hospitalized. We found the following frequencies for specific mandible fractures locations: symphysis-parasymphysis 35%, body 27/4%, subcondylar 19/4%, angle 13/1%, ramous 3/6%, alveolar process 1/2%. The most common etiology was motor vehicle accidents fallowed by fighting and falls.87/6%patients were males and most of patients were in 11 to 40 year-old age group
Conclusion: Knowing the prevalence of various types of mandibular fractures from the anatomic standpoint and their correlation to etiology can be helpful in accurate diagnosis and in selecting proper treatment method. Because motor vehicle accidents is the most common cause of this fracture, following traffic regulations and employment of safety devices can be effective in reducing of this injuries.