Epidemiology of mandibular fractures in patients treated by the maxillofacial surgery service of the Hospital Central Militar during the period March 2019 - November 2022.

Objective: to know the epidemiology of different mandibular fractures in patients attending the oral and maxillofacial surgery service of the military central hospital during the period 2019 - 2022. Methodology: logbooks of patients of both sexes over 18 years of age with a diagnosis of mandibular fracture who were seen at the Hospital Central Militar during the period 01/March/2019 to 01/March/2022 were reviewed, the variables under study were collected and organized in databases the Excel program; the characteristics and results of the patients were reported as frequencies and proportions for categorical variables and median and Inter quartile range or mean and SD for continuous variables. Results: a total of 80 cases of mandibular fracture were found. The main etiology in this study was automobile accident with 27.5 % (76). Sixty-one (61) patients presented isolated mandibular fracture. The most frequent anatomical site of mandibular fracture was the angle. Treatment was open reduction with internal fixation 95.5 % (76) and conservative treatment 4.5 % (4). Material instability was the only one reported, present in 3.75 % of the patients. Limitations: a larger sample may provide more robust results. Value: this study provides insight into the epidemiological behavior of mandibular fractures in a sample of the population at EyFAM, the results provide valuable information to improve prevention, diagnosis and treatment of specific patients resulting in lower healthcare costs and better quality of life for EyFAM servicemen and their entitled patients. Conclusions: the prevalence of mandibular fractures was significantly higher in men in the second and third decade of life. The most common cause was a motor vehicle accident, and the angle together with the parasymphysis were the most affected anatomical sites. A quarter of the patients had fractures associated with the mandibular fracture, the most frequent being fractures of the floor of the orbit and fracture of the orbitozygomatic complex. Open reduction with internal fixation was the most commonly used treatment. The only complication reported was material instability and it occurred in less than 5 % of the patients. [ABSTRACT FROM AUTHOR]