South African Dental Journal
versão On-line ISSN 0375-1562
SINGH, AS; BOUCKAERT, MMR; MCHENGA, JM e PERUMAL, CJ. An investigation into the incidence and distribution of fractures of the coronoid process in patients presenting at the Sefako Makgatho Health Sciences University, Oral Health Centre. S. Afr. dent. j. [online]. 2015, vol.70, n.9, pp. 384-387. ISSN 0375-1562.
Isolated coronoid fractures, especially those that are due to direct trauma are very uncommon because the coronoid process is anatomically sheltered by the zygomatic complex, and the associated muscles. Further, such fractures can easily be missed. The causes of coronoid fractures include road traffic accidents, interpersonal violence, gunshot injuries, third molar extractions, pathology and bilateral sagittal split osteotomies. The aim of this study was to assess the incidence and distribution of coronoid fractures among trauma patients who had presented to the Maxillofacial and Oral Surgery Department, Sefako Makgatho Health Sciences University, between the years 2005 to 2008. One thousand seven hundred and fifty five patients who reported to the Oral and Dental Hospital had sustained facial bone fractures, of which one thousand two hundred and twenty two had suffered mandibular fractures. Fifteen (1.23%) of these patients were found to have a fracture of the coronoid process. The main causes of injury were seen to have been gunshots and assault, with the latter having been the major contributor. All the coronoid fractures were treated conservatively.