en تخصصي Special گزارش مورد case report <strong>BACKGROUND</strong><br> Iranian people celebrate the last Wednesday of the year also known as Chahar Shambeh Soori (CSS) using <a href="https://en.wikipedia.org/wiki/Low_explosive" title="Low explosive">low explosive</a>&nbsp;<a href="https://en.wikipedia.org/wiki/Pyrotechnics" title="Pyrotechnics">pyrotechnic</a>s classified as fireworks. Mishaps and accidents are common and maxillofacial fractures may occur which have a negative impact on the quality of life. This study aimed to assess maxillofacial fractures (fx) caused by explosive agents.<br> <strong>METHODS</strong><br> This cross-sectional descriptive study assessed 283 patients suffering maxillofacial fxs caused by explosive agents during CSS ceremonies between 2009 and 2019 referred to our craniomaxillofacial (CMF) surgery center. The data assessed included age, sex, cause, type, site, and severity of injury, fracture patterns, treatment modalities, and complications. All maxillofacial injuries were evaluated and treated by Craniomaxillofacial staff surgeons. <strong>RESULTS</strong><br> Among 283 patients, 72.8% (206) and 27.2% (77) were men and women, respectively. The mean age of patients was 17.35 years. The most common maxillofacial fracture was in the mid-face; with the distribution of fractures being: 39.9% zygomatic fractures, 32.1% nasal bone fractures, 63.2% dentoalveolar fracture, 43.1% Le Fort (Le Fort I, Le Fort II, Le Fort III), 31.4% orbital, and 43.1% mandible fractures. The most frequent type of treatment was Open Reduction and Internal Fixation (ORIF) (77.4%).<br> <strong>CONCLUSION</strong><br> The most common site of maxillofacial fractures and most frequent treatment used were similar to military or ballistic injuries. ORIF was common treatment. Trauma, Maxillofacial, Fracture, Firework, Explosive agents 46 53 http://wjps.ir/browse.php?a_code=A-10-528-7&slc_lang=en&sid=1 Mahdy Saboury 100319475328460011618 100319475328460011618 Yes 1- Department of Plastic and Reconstructive Surgery, School of Medicine, Iran University of Medical Sciences, Tehran, Iran Noor Ahmad Latifi 100319475328460011619 100319475328460011619 No 1- Department of Plastic and Reconstructive Surgery, School of Medicine, Iran University of Medical Sciences, Tehran, Iran Shahriar Saboury 100319475328460011620 100319475328460011620 No 2- Department of General Surgery, School of Medicine, Iran University of Medical Sciences, Tehran, Iran Sona Akbarikia 100319475328460011621 100319475328460011621 No 3- Department of Radiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran Fatemeh Latifi 100319475328460011622 100319475328460011622 No 4- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran Mohsen Khaleghian 100319475328460011623 100319475328460011623 No 5- Department of General Surgery, School of Medicine, Iran University of Medical Sciences, Tehran, Iran , Mohammad Hosein Kalantar Motamedi 100319475328460011624 100319475328460011624 No 6- Department of Craniomaxillofacial Trauma Research, School of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran