Tehran University of Medical Sciences Journal of Craniomaxillofacial Research 2345-5489 10 2 2023 10 16 52 57 Tayebeh Ghasemi Department of Oral and Maxillofacial Surgery, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran. Amir Hossein Khazaei School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran. Fatemeh Teymoorpoor School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran. Sadra Amirpour Haradasht Department of Oral and Maxillofacial Surgery, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran. 2023 08 29 2023 09 30 Introduction: The current study is aimed at investigating the epidemiology of zygomaticomaxillary  complex fracture in oral and maxillofacial trauma patients in a trauma hospital.  Materials and Methods: This cross-sectional descriptive-analytical study with 187 patients  was conducted at Khatam al-Anbia Hospital in Zahedan from April 2018 to December 2021. All  the data including etiology, gender, age, ethnicity, year and place of occurrence, and site of fracture  were obtained from the medical records of all oral and maxillofacial trauma patients who were  subjected to ZMC fracture. Chi-Square and Fisher’s exact tests were used to analyze the data.  Results: Mean age of the patients was 29.53±14.13 years. Out of 187 patients, 87.2% (163 people)  were male and 12.8% (24 people) were female. People between 20 and 40 years had more ZMC  fractures than other age groups with 104 cases (55.7%). Baluch ethnic group with 111 people  (59.3%) experienced more fractures than other ethnic groups. The highest fracture rate occurred  in 2021 with 63 cases (33.7%). Street was the most prevalent place of occurrence for fractures with  134 cases (71.6%). Isolated cheek fracture was the most common with 95 cases (51%). The most  common cause of fracture was traffic accidents with a prevalence of 71.1%.  Conclusion: The results revealed that traffic accident is the main cause of ZMC fractures in the  studied population. Thus, public awareness and strict implementation of traffic policies are needed.  Keywords: Epidemiology; Fractures; Maxillofacial trauma; Zygomaticomaxillary complex fractures. https://jcr.tums.ac.ir/index.php/jcr/article/view/455 https://jcr.tums.ac.ir/index.php/jcr/article/download/455/377